# Seiten

- [Computer, Internet, SEO & Software – alles außer langweilig!](https://www.jan-siefken.com/)
  - Published: 2025-07-11
  - Modified: 2025-07-11
  - URL: https://www.jan-siefken.com/
  - Description: Jans Blog: Neueste Computer- und Internet-News, Tipps zur Optimierung der Online-Präsenz, immer auf dem neusten Stand der Technik.

- [Software](https://www.jan-siefken.com/software/)
  - Published: 2009-04-16
  - Modified: 2025-07-11
  - URL: https://www.jan-siefken.com/software/

# Beiträge

- [llms.txt Generator für WordPress kostenlos](https://www.jan-siefken.com/llms-generator/)
  - Published: 2025-07-07
  - Modified: 2025-07-11
  - URL: https://www.jan-siefken.com/llms-generator/
  - Description: llms.txt Generator für WordPress - gratis WordPress-Plugin, llms.txt automatisch erstellen. Ideal für GEO - Generative Engine Optimization.

- [Generative Engine Optimization: GEO-Strategien für KI](https://www.jan-siefken.com/generative-engine-optimization/)
  - Published: 2025-06-26
  - Modified: 2025-07-08
  - URL: https://www.jan-siefken.com/generative-engine-optimization/
  - Description: Generative Engine Optimization (GEO) erklärt: Techniken, Datenstrukturen und llms.txt, um Inhalte für ChatGPT, Gemini & Co. KI-tauglich aufzubereiten.

- [Die ultimativen SEO-Tipps für 2025](https://www.jan-siefken.com/die-ultimativen-seo-tipps/)
  - Published: 2025-05-15
  - Modified: 2025-07-07
  - URL: https://www.jan-siefken.com/die-ultimativen-seo-tipps/
  - Description: Suchmaschinenoptimierung leicht gemacht: Mit diesen SEO-Tipps durchstarten! So steuern Sie Ihre Website direkt auf Seite 1 der Suchmaschinen.

- [SEO Glossar: Über 180 Begriffe und Definitionen](https://www.jan-siefken.com/seo-glossar/)
  - Published: 2025-05-15
  - Modified: 2025-05-17
  - URL: https://www.jan-siefken.com/seo-glossar/
  - Description: SEO Glossar: Das unverzichtbare Nachschlagewerk für Suchmaschinenoptimierung. Lernen Sie die wichtigsten SEO-Begriffe kennen.

- [JBL Tune Beam Test: Klang, ANC & App im Praxis-Check!](https://www.jan-siefken.com/jbl-tune-beam-test/)
  - Published: 2025-05-06
  - Modified: 2025-05-06
  - URL: https://www.jan-siefken.com/jbl-tune-beam-test/
  - Description: JBL Tune Beam im ausführlichen Test: Klangqualität, Akkulaufzeit, ANC und Personalisierung mit JBL-App.

- [Kleines BWL Lexikon](https://www.jan-siefken.com/bwl-lexikon/)
  - Published: 2025-04-16
  - Modified: 2025-04-29
  - URL: https://www.jan-siefken.com/bwl-lexikon/
  - Description: Das kleine BWL Lexikon bietet prägnante Definitionen zu den wichtigsten Begriffen der Betriebswirtschaftslehre. Online über BWL informieren.

- [Baumarkt-Mythen: Was stimmt wirklich?](https://www.jan-siefken.com/baumarkt-mythen-was-stimmt-wirklich/)
  - Published: 2025-04-16
  - Modified: 2025-04-16
  - URL: https://www.jan-siefken.com/baumarkt-mythen-was-stimmt-wirklich/
  - Description: Welche Baumarkt-Mythen stimmen – und welche nicht? Von teurem Werkzeug bis Sonderangeboten: Lies jetzt, worauf Du wirklich achten solltest.

- [DSL Speedtest – Geschwindigkeit Internet testen](https://www.jan-siefken.com/dsl-speedtest/)
  - Published: 2025-04-15
  - Modified: 2025-04-16
  - URL: https://www.jan-siefken.com/dsl-speedtest/
  - Description: Finden Sie mit dem DSL Speedtest heraus, wie schnell Ihre Internetverbindung ist. Erhalten Sie Ergebnisse über schnelles oder langsames Internet.

- [Windows 11 Kamera funktioniert nicht? Tipps zur Lösung](https://www.jan-siefken.com/kamera-funktioniert-nicht-unter-windows-11/)
  - Published: 2025-03-20
  - Modified: 2025-03-20
  - URL: https://www.jan-siefken.com/kamera-funktioniert-nicht-unter-windows-11/
  - Description: Probleme mit der Kamera unter Windows 11? Hier finden Sie einfache Schritte zur Fehlerbehebung um sie wieder zum Laufen zu bringen.

- [Die Wirkung von Chili auf die Gesundheit](https://www.jan-siefken.com/chili-gesundheit/)
  - Published: 2025-03-01
  - Modified: 2025-03-01
  - URL: https://www.jan-siefken.com/chili-gesundheit/
  - Description: Chili: Ein feuriger Boost für deine Gesundheit. Erfahre mehr über Chili und die positiven Wirkungen von Capsicum. Jetzt informieren.

- [Hunderassen: Welche passt zu dir?](https://www.jan-siefken.com/hunderassen-welche-passt-zu-dir/)
  - Published: 2024-10-10
  - Modified: 2024-10-10
  - URL: https://www.jan-siefken.com/hunderassen-welche-passt-zu-dir/
  - Description: Welche Hunderasse passt zu dir? Tipps zu Charakter, Pflegeaufwand und Eignung. Erfahre mehr über Familienhunde, aktive Rassen und Anfängerhunde.

- [Encebollado – Ecuadors beliebte Fischsuppe](https://www.jan-siefken.com/encebollado-ecuadors-beliebte-fischsuppe/)
  - Published: 2024-09-26
  - Modified: 2025-04-17
  - URL: https://www.jan-siefken.com/encebollado-ecuadors-beliebte-fischsuppe/
  - Description: Encebollado: Ecuadors beliebte Fischsuppe. Entdecke dieses herzhafte Nationalgericht, seine Zutaten und warum es ein beliebtes Frühstück ist.

- [Neue Amazon Visa Karte von Santander/Zinia – alle Infos](https://www.jan-siefken.com/amazon-visa-karte/)
  - Published: 2024-09-16
  - Modified: 2025-04-25
  - URL: https://www.jan-siefken.com/amazon-visa-karte/
  - Description: Die neue Amazon Visa Karte: Gebührenfrei, Bonuspunkte & flexible Zahlungen. Keine Jahresgebühr – ideal für alle Amazon Nutzer. Jetzt informieren!

- [Barrierefreiheit im Internet: Chancen & Herausforderungen](https://www.jan-siefken.com/barrierefreiheit-im-internet/)
  - Published: 2024-06-11
  - Modified: 2024-06-12
  - URL: https://www.jan-siefken.com/barrierefreiheit-im-internet/
  - Description: Barrierefreiheit im Internet: Im Juni 2025 tritt das Barrierefreiheitsstärkungsgesetz (BFSG) in Kraft. Erfahre mehr über Chancen & Herausforderungen.

- [Shopware Ladezeit optimieren – PageSpeed verbessern](https://www.jan-siefken.com/shopware-ladezeit-optimieren/)
  - Published: 2024-04-10
  - Modified: 2024-04-11
  - URL: https://www.jan-siefken.com/shopware-ladezeit-optimieren/
  - Description: Optimieren Sie die Ladezeit Ihres Shopware-Shops mit den Tipps zur PageSpeed Optimierung. Verbessern Sie die Geschwindigkeit Ihres Shopware Shops.

- [Kaufabbrüche im Onlineshop reduzieren](https://www.jan-siefken.com/kaufabbrueche-im-onlineshop-reduzieren/)
  - Published: 2024-04-10
  - Modified: 2024-04-11
  - URL: https://www.jan-siefken.com/kaufabbrueche-im-onlineshop-reduzieren/
  - Description: Optimieren Sie Ihren Onlineshop mit unserer Checkout Optimierung - weniger Kaufabbrüche, mehr Umsatz. Günstige Analyse anfordern.

- [Google Gemini scheitert an einfacher Rechenaufgabe](https://www.jan-siefken.com/google-gemini-scheitert-an-einfacher-rechenaufgabe/)
  - Published: 2024-03-01
  - Modified: 2024-03-01
  - URL: https://www.jan-siefken.com/google-gemini-scheitert-an-einfacher-rechenaufgabe/
  - Description: Google Gemini Ultra: Selbst einfache Rechenaufgaben können trotz der versprochenen hohen Leistungsfähigkeit zu falschen Antworten führen.

- [MARSHALL MINOR III In-Ear Bluetooth Kopfhörer](https://www.jan-siefken.com/marshall-minor-iii-in-ear-bluetooth-kopfhoerer/)
  - Published: 2023-04-26
  - Modified: 2023-04-26
  - URL: https://www.jan-siefken.com/marshall-minor-iii-in-ear-bluetooth-kopfhoerer/
  - Description: Erlebe den Marshall-Sound mit dem Minor III Bluetooth In-Ear Kopfhörer - 5 Stunden kabellose Spieldauer, perfekter Sound, integriertes Mikrofon.

- [Cinebench Benchmark Test für CPU und Grafikkarte](https://www.jan-siefken.com/benchmark-test/)
  - Published: 2023-01-27
  - Modified: 2023-02-04
  - URL: https://www.jan-siefken.com/benchmark-test/
  - Description: Der Cinebench Benchmark Test ist eine kostenlose Software, um die Leistung von Grafikkarten und Prozessoren zu testen ➔ Download gratis.

- [Freeware HTML-Editor Phase 5](https://www.jan-siefken.com/freeware-html-editor-phase-5/)
  - Published: 2023-01-27
  - Modified: 2023-02-07
  - URL: https://www.jan-siefken.com/freeware-html-editor-phase-5/
  - Description: Der HTML Editor Phase 5 von Ulli Meybohm ist ein Freeware-Programm zum Erstellen von Hypertextdokumenten (HTML) für Internet. Jetzt runterladen.

- [SEO Analyse für Online-Shops für Top Rankings](https://www.jan-siefken.com/seo-analyse/)
  - Published: 2023-01-27
  - Modified: 2023-02-07
  - URL: https://www.jan-siefken.com/seo-analyse/
  - Description: SEO Analyse für Online-Shops - Bringen Sie Ihren Online-Shop auf Platz 1in den Suchmaschinen Google und Bing. Höhere Konversionrate, mehr Umsatz.

- [Online Konto eröffnen und Geld sparen](https://www.jan-siefken.com/online-konto-eroeffnen/)
  - Published: 2023-01-27
  - Modified: 2023-02-07
  - URL: https://www.jan-siefken.com/online-konto-eroeffnen/

- [Amazon Prime Reading Kindle eBooks kostenlos lesen](https://www.jan-siefken.com/amazon-prime-reading-kindle-ebooks-kostenlos-lesen/)
  - Published: 2017-06-23
  - Modified: 2017-06-23
  - URL: https://www.jan-siefken.com/amazon-prime-reading-kindle-ebooks-kostenlos-lesen/
  - Description: Prime-Mitglieder können ab sofort mit Prime Reading eine wechselnde Auswahl an Hunderten von Kindle eBooks kostenlos lesen.

- [Notebooks für Linux](https://www.jan-siefken.com/notebooks-linux/)
  - Published: 2012-07-01
  - Modified: 2012-07-01
  - URL: https://www.jan-siefken.com/notebooks-linux/

- [Apple iPad – neuer Millionen-Markt](https://www.jan-siefken.com/apple-ipad-neuer-millionen-markt/)
  - Published: 2010-05-29
  - Modified: 2010-05-29
  - URL: https://www.jan-siefken.com/apple-ipad-neuer-millionen-markt/

- [Der neue Staat iPad](https://www.jan-siefken.com/der-neue-staat-ipad/)
  - Published: 2010-05-29
  - Modified: 2010-05-29
  - URL: https://www.jan-siefken.com/der-neue-staat-ipad/

- [Notebook Akku Ersatzakkus](https://www.jan-siefken.com/notebook-akku/)
  - Published: 2010-05-17
  - Modified: 2010-05-17
  - URL: https://www.jan-siefken.com/notebook-akku/

- [PREDATORS SciFi-Horror-Film](https://www.jan-siefken.com/predators-scifi-horror-film/)
  - Published: 2010-05-17
  - Modified: 2010-05-17
  - URL: https://www.jan-siefken.com/predators-scifi-horror-film/

- [Apple iPad – erster Eindruck](https://www.jan-siefken.com/apple-ipad-erster-eindruck/)
  - Published: 2010-05-07
  - Modified: 2010-05-07
  - URL: https://www.jan-siefken.com/apple-ipad-erster-eindruck/

- [Schutz Privatsphäre in SchülerVZ](https://www.jan-siefken.com/schutz-privatsphaere-in-schulervz/)
  - Published: 2010-05-06
  - Modified: 2010-05-06
  - URL: https://www.jan-siefken.com/schutz-privatsphaere-in-schulervz/

- [Handy LG KM570 ARENA II](https://www.jan-siefken.com/handy-lg-km570-arena-ii/)
  - Published: 2010-05-05
  - Modified: 2010-05-05
  - URL: https://www.jan-siefken.com/handy-lg-km570-arena-ii/

- [Video Format GP3 in Avi und MP4 konvertieren](https://www.jan-siefken.com/video-format-gp3/)
  - Published: 2010-05-03
  - Modified: 2010-05-03
  - URL: https://www.jan-siefken.com/video-format-gp3/

- [Spam bei Twitter E-Mail-Benachrichtigung](https://www.jan-siefken.com/spam-bei-twitter-e-mail-benachrichtigung/)
  - Published: 2010-05-03
  - Modified: 2010-05-03
  - URL: https://www.jan-siefken.com/spam-bei-twitter-e-mail-benachrichtigung/

- [Social-Media-Vertrieb in vielen Unternehmen wenig genutzt](https://www.jan-siefken.com/social-media-unternehmen/)
  - Published: 2010-05-03
  - Modified: 2010-05-03
  - URL: https://www.jan-siefken.com/social-media-unternehmen/

- [Internet bei Europas Frauen beliebt](https://www.jan-siefken.com/internet-bei-europas-frauen-beliebt/)
  - Published: 2010-05-03
  - Modified: 2010-05-03
  - URL: https://www.jan-siefken.com/internet-bei-europas-frauen-beliebt/

- [Apple macht Musikdienst Lala dicht](https://www.jan-siefken.com/apple-macht-musikdienst-lala-dicht/)
  - Published: 2010-05-03
  - Modified: 2010-05-03
  - URL: https://www.jan-siefken.com/apple-macht-musikdienst-lala-dicht/

- [Uwe Ochsenknecht singt bei Inas Nacht](https://www.jan-siefken.com/uwe-ochsenknecht-inas-nacht/)
  - Published: 2010-05-01
  - Modified: 2010-05-01
  - URL: https://www.jan-siefken.com/uwe-ochsenknecht-inas-nacht/

- [Internet-Sicherheitspakete im Test](https://www.jan-siefken.com/internet-sicherheitspakete-im-test/)
  - Published: 2010-04-15
  - Modified: 2010-04-15
  - URL: https://www.jan-siefken.com/internet-sicherheitspakete-im-test/

- [Telefonieren Weltrekordversuch von Alice und Radio Hamburg](https://www.jan-siefken.com/telefonieren-weltrekordversuch/)
  - Published: 2010-04-15
  - Modified: 2010-04-15
  - URL: https://www.jan-siefken.com/telefonieren-weltrekordversuch/

- [Duke Nukem Forever Gameplay Trailer 2010](https://www.jan-siefken.com/duke-nukem-forever-gameplay/)
  - Published: 2010-04-08
  - Modified: 2010-04-08
  - URL: https://www.jan-siefken.com/duke-nukem-forever-gameplay/

- [Handy – guestige iPhone Alternativen](https://www.jan-siefken.com/handy-iphone-alternativen/)
  - Published: 2010-03-26
  - Modified: 2010-03-26
  - URL: https://www.jan-siefken.com/handy-iphone-alternativen/

- [Kaspersky PURE Security Software](https://www.jan-siefken.com/kaspersky-pure-security-software/)
  - Published: 2010-03-26
  - Modified: 2010-03-30
  - URL: https://www.jan-siefken.com/kaspersky-pure-security-software/

- [Intel Core i7 Prozessor fuer embedded PC-Anwendungen](https://www.jan-siefken.com/intel-core-i7-prozessor/)
  - Published: 2010-03-18
  - Modified: 2010-03-18
  - URL: https://www.jan-siefken.com/intel-core-i7-prozessor/

- [Paris 26 Gigapixels Panorama-Bild](https://www.jan-siefken.com/paris-26-gigapixels/)
  - Published: 2010-03-18
  - Modified: 2010-03-18
  - URL: https://www.jan-siefken.com/paris-26-gigapixels/

- [Uebersetzungs-Software oft wenig tauglich](https://www.jan-siefken.com/uebersetzungs-software/)
  - Published: 2010-03-15
  - Modified: 2010-03-15
  - URL: https://www.jan-siefken.com/uebersetzungs-software/

- [Sudoku Onlinespiel](https://www.jan-siefken.com/sudoku-onlinespiel/)
  - Published: 2010-03-15
  - Modified: 2010-03-15
  - URL: https://www.jan-siefken.com/sudoku-onlinespiel/

- [Apple iPad bald verfuegbar](https://www.jan-siefken.com/apple-ipad-bald-verfuegbar/)
  - Published: 2010-03-09
  - Modified: 2010-03-09
  - URL: https://www.jan-siefken.com/apple-ipad-bald-verfuegbar/

- [CRAZY HEART OSCARS Jeff Bridges und Filmmusik](https://www.jan-siefken.com/crazy-heart-oscar/)
  - Published: 2010-03-08
  - Modified: 2010-03-08
  - URL: https://www.jan-siefken.com/crazy-heart-oscar/

- [CeBIT 2010 Top-Trends der Messe](https://www.jan-siefken.com/cebit-2010-trends/)
  - Published: 2010-03-05
  - Modified: 2010-03-05
  - URL: https://www.jan-siefken.com/cebit-2010-trends/

- [Internetnutzung auf Handy nimmt zu](https://www.jan-siefken.com/internetnutzung-handy/)
  - Published: 2010-02-25
  - Modified: 2010-02-25
  - URL: https://www.jan-siefken.com/internetnutzung-handy/

- [CeBIT intelligente Wohnumgebungen](https://www.jan-siefken.com/ambient-assisted-living/)
  - Published: 2010-02-25
  - Modified: 2010-02-25
  - URL: https://www.jan-siefken.com/ambient-assisted-living/

- [Ego-Shooter Metro 2033 im Test](https://www.jan-siefken.com/ego-shooter-metro-2033/)
  - Published: 2010-02-25
  - Modified: 2010-02-25
  - URL: https://www.jan-siefken.com/ego-shooter-metro-2033/

- [Yahoo schliesst Partnerschaft mit Twitter](https://www.jan-siefken.com/yahoo-twitter/)
  - Published: 2010-02-25
  - Modified: 2010-02-25
  - URL: https://www.jan-siefken.com/yahoo-twitter/

- [Apple iPad der neue Tablet-PC](https://www.jan-siefken.com/apple-ipad-tablet-pc/)
  - Published: 2010-02-22
  - Modified: 2010-02-22
  - URL: https://www.jan-siefken.com/apple-ipad-tablet-pc/

- [Mobiles Internet und Daten-Flatrates](https://www.jan-siefken.com/mobiles-internet-2/)
  - Published: 2010-02-22
  - Modified: 2010-02-22
  - URL: https://www.jan-siefken.com/mobiles-internet-2/

- [Desktop anzeigen bei Windows 7](https://www.jan-siefken.com/desktop-anzeigen-bei-windows-7/)
  - Published: 2010-02-20
  - Modified: 2010-02-20
  - URL: https://www.jan-siefken.com/desktop-anzeigen-bei-windows-7/

- [Neue Wurm-Variante Spybot.AKB](https://www.jan-siefken.com/neue-wurm-variante-spybot-akb/)
  - Published: 2010-02-19
  - Modified: 2010-02-19
  - URL: https://www.jan-siefken.com/neue-wurm-variante-spybot-akb/

- [Mac Magazin fuer Einsteiger](https://www.jan-siefken.com/mac-magazin/)
  - Published: 2010-02-19
  - Modified: 2010-02-19
  - URL: https://www.jan-siefken.com/mac-magazin/

- [Psychologie: Frauen interessieren staerker fuer Krimis als Maenner](https://www.jan-siefken.com/psychologie-frauen-krimis/)
  - Published: 2010-02-19
  - Modified: 2010-02-19
  - URL: https://www.jan-siefken.com/psychologie-frauen-krimis/

- [Neue E-Shops machen gluecklicher](https://www.jan-siefken.com/e-shops/)
  - Published: 2010-02-17
  - Modified: 2010-02-17
  - URL: https://www.jan-siefken.com/e-shops/

- [Axolotl Roadkill](https://www.jan-siefken.com/axolotl-roadkill/)
  - Published: 2010-02-17
  - Modified: 2010-02-17
  - URL: https://www.jan-siefken.com/axolotl-roadkill/

- [Zeitungen nutzen verstaerkt digitale Moeglichkeiten](https://www.jan-siefken.com/zeitungen-digitale-moeglichkeiten/)
  - Published: 2010-02-17
  - Modified: 2010-02-17
  - URL: https://www.jan-siefken.com/zeitungen-digitale-moeglichkeiten/

- [Grafikkarte NVIDIA GeForce GT 220](https://www.jan-siefken.com/grafikkarte-nvidia-geforce-gt-220/)
  - Published: 2010-02-16
  - Modified: 2010-02-16
  - URL: https://www.jan-siefken.com/grafikkarte-nvidia-geforce-gt-220/

- [Mini Radio fuer die Windows Sidebar](https://www.jan-siefken.com/radio-windows-sidebar/)
  - Published: 2010-02-16
  - Modified: 2010-02-16
  - URL: https://www.jan-siefken.com/radio-windows-sidebar/

- [Windows Phone 7 Microsoft Smartphone-Betriebssystem](https://www.jan-siefken.com/windows-phone-7/)
  - Published: 2010-02-16
  - Modified: 2010-02-16
  - URL: https://www.jan-siefken.com/windows-phone-7/

- [Internet Security Suiten oft magelhaft](https://www.jan-siefken.com/internet-security-suiten/)
  - Published: 2010-02-15
  - Modified: 2010-02-15
  - URL: https://www.jan-siefken.com/internet-security-suiten/

- [IBM stellt neue Power7-Systeme vor](https://www.jan-siefken.com/ibm-power7-systeme/)
  - Published: 2010-02-15
  - Modified: 2010-02-15
  - URL: https://www.jan-siefken.com/ibm-power7-systeme/

- [Valentinstag – Gefaehrliche Liebesgruesse](https://www.jan-siefken.com/valentinstag/)
  - Published: 2010-02-12
  - Modified: 2010-02-12
  - URL: https://www.jan-siefken.com/valentinstag/

- [Global Mobile Broadband Traffic Report](https://www.jan-siefken.com/global-mobile-broadband-traffic-report/)
  - Published: 2010-02-09
  - Modified: 2010-02-09
  - URL: https://www.jan-siefken.com/global-mobile-broadband-traffic-report/

- [Fleiss ist wichtiger als Talent](https://www.jan-siefken.com/fleiss-ist-wichtiger-als-talent/)
  - Published: 2010-02-09
  - Modified: 2010-02-09
  - URL: https://www.jan-siefken.com/fleiss-ist-wichtiger-als-talent/

- [Battlefield – Bad Company 2 Demo](https://www.jan-siefken.com/battlefield-bad-company-2-demo/)
  - Published: 2010-02-09
  - Modified: 2010-02-09
  - URL: https://www.jan-siefken.com/battlefield-bad-company-2-demo/

- [Live auf der CeBIT – Next level 3D](https://www.jan-siefken.com/cebit-next-level-3d/)
  - Published: 2010-02-08
  - Modified: 2010-02-08
  - URL: https://www.jan-siefken.com/cebit-next-level-3d/

- [Unternehmen suchen Dialog mit Web-Nutzern](https://www.jan-siefken.com/dialog-web-nutzer/)
  - Published: 2010-02-08
  - Modified: 2010-02-08
  - URL: https://www.jan-siefken.com/dialog-web-nutzer/

- [Kabel Deutschland bis 100 Mbit/s-schnelles Internet](https://www.jan-siefken.com/kabel-deutschland-internet/)
  - Published: 2010-02-08
  - Modified: 2010-02-08
  - URL: https://www.jan-siefken.com/kabel-deutschland-internet/

- [Windows 7 ReadyBoost](https://www.jan-siefken.com/windows-7-readyboost/)
  - Published: 2010-02-04
  - Modified: 2010-02-04
  - URL: https://www.jan-siefken.com/windows-7-readyboost/

- [Computer Hardware und ihre Grenzen](https://www.jan-siefken.com/computer-hardware/)
  - Published: 2010-01-28
  - Modified: 2010-01-28
  - URL: https://www.jan-siefken.com/computer-hardware/

- [Steve Jobs stellt das Apple iPad vor](https://www.jan-siefken.com/apple-ipad/)
  - Published: 2010-01-28
  - Modified: 2010-01-28
  - URL: https://www.jan-siefken.com/apple-ipad/

- [Social Media Week in Berlin](https://www.jan-siefken.com/social-media-week-in-berlin/)
  - Published: 2010-01-28
  - Modified: 2010-01-28
  - URL: https://www.jan-siefken.com/social-media-week-in-berlin/

- [Wie IT-Dienstleister erfolgreich bleiben koennen](https://www.jan-siefken.com/it-dienstleister/)
  - Published: 2010-01-28
  - Modified: 2010-01-28
  - URL: https://www.jan-siefken.com/it-dienstleister/

- [Axel Springer startet watchmi](https://www.jan-siefken.com/watchmi/)
  - Published: 2010-01-28
  - Modified: 2010-01-28
  - URL: https://www.jan-siefken.com/watchmi/

- [Roxy Music – On The Radio](https://www.jan-siefken.com/roxy-music-on-the-radio/)
  - Published: 2010-01-28
  - Modified: 2010-01-28
  - URL: https://www.jan-siefken.com/roxy-music-on-the-radio/

- [Apple iPad – neuer Tablet-PC](https://www.jan-siefken.com/apple-ipad-neuer-tablet-pc/)
  - Published: 2010-01-26
  - Modified: 2010-01-28
  - URL: https://www.jan-siefken.com/apple-ipad-neuer-tablet-pc/

- [Soziale Netzwerke im Web 2.0 Zeitalter](https://www.jan-siefken.com/soziale-netzwerke-web-2-0/)
  - Published: 2010-01-20
  - Modified: 2010-01-26
  - URL: https://www.jan-siefken.com/soziale-netzwerke-web-2-0/

- [Eee PC T91MT](https://www.jan-siefken.com/eee-pc-t91mt/)
  - Published: 2010-01-05
  - Modified: 2010-01-05
  - URL: https://www.jan-siefken.com/eee-pc-t91mt/

- [Deutsche wollen kein Weihnachtsgebaeck im September](https://www.jan-siefken.com/weihnachtsgebaeck-im-september/)
  - Published: 2009-12-02
  - Modified: 2009-12-02
  - URL: https://www.jan-siefken.com/weihnachtsgebaeck-im-september/

- [Weihnachten 2009 – Weihnachtsgeschaeft im Handel gestartet](https://www.jan-siefken.com/weihnachten-2009-weihnachtsgeschaeft/)
  - Published: 2009-11-13
  - Modified: 2009-11-13
  - URL: https://www.jan-siefken.com/weihnachten-2009-weihnachtsgeschaeft/

- [Adobe LiveCycle ES2](https://www.jan-siefken.com/adobe-livecycle-es2/)
  - Published: 2009-11-11
  - Modified: 2009-11-11
  - URL: https://www.jan-siefken.com/adobe-livecycle-es2/

- [Windows 7 im Social Web](https://www.jan-siefken.com/windows-7-im-social-web/)
  - Published: 2009-11-05
  - Modified: 2009-11-05
  - URL: https://www.jan-siefken.com/windows-7-im-social-web/

- [Mobilfunkshops im Test](https://www.jan-siefken.com/mobilfunkshops-im-test/)
  - Published: 2009-10-23
  - Modified: 2009-10-23
  - URL: https://www.jan-siefken.com/mobilfunkshops-im-test/

- [DENIC – neue kurze Domains](https://www.jan-siefken.com/denic-neue-kurze-domains/)
  - Published: 2009-10-23
  - Modified: 2009-10-23
  - URL: https://www.jan-siefken.com/denic-neue-kurze-domains/

- [Neuer Mini PC mit geringem Energiebedarf](https://www.jan-siefken.com/mini-pc/)
  - Published: 2009-10-21
  - Modified: 2009-10-21
  - URL: https://www.jan-siefken.com/mini-pc/

- [Mini Notebook Dell Inspiron 11z](https://www.jan-siefken.com/inspiron-11z-mini-notebook/)
  - Published: 2009-10-08
  - Modified: 2009-10-08
  - URL: https://www.jan-siefken.com/inspiron-11z-mini-notebook/

- [HD-Recorder mit DVB-T](https://www.jan-siefken.com/hd-recorder-mit-dvb-t/)
  - Published: 2009-10-08
  - Modified: 2009-10-08
  - URL: https://www.jan-siefken.com/hd-recorder-mit-dvb-t/

- [Umstieg auf Windows 7](https://www.jan-siefken.com/windows-7/)
  - Published: 2009-10-07
  - Modified: 2009-10-07
  - URL: https://www.jan-siefken.com/windows-7/

- [Externe Festplatte – guenstiger Preis nicht immer entscheidend](https://www.jan-siefken.com/externe-festplatte/)
  - Published: 2009-10-07
  - Modified: 2009-10-07
  - URL: https://www.jan-siefken.com/externe-festplatte/

- [PC Spiele – billiger PC oft besser als teures Notebook](https://www.jan-siefken.com/pc-spiele-notebook/)
  - Published: 2009-10-07
  - Modified: 2009-10-07
  - URL: https://www.jan-siefken.com/pc-spiele-notebook/

- [Hoerbuch Download nimmt zu](https://www.jan-siefken.com/hoerbuch-download-nimmt-zu/)
  - Published: 2009-10-07
  - Modified: 2009-10-07
  - URL: https://www.jan-siefken.com/hoerbuch-download-nimmt-zu/

- [Firefox 3.6 Beta](https://www.jan-siefken.com/firefox-3-6-beta/)
  - Published: 2009-10-07
  - Modified: 2009-10-07
  - URL: https://www.jan-siefken.com/firefox-3-6-beta/

- [Internetradio Player Musik als Mp3 aufnehmen](https://www.jan-siefken.com/internetradio-musik-aufnehmen/)
  - Published: 2009-10-01
  - Modified: 2009-10-01
  - URL: https://www.jan-siefken.com/internetradio-musik-aufnehmen/

- [Black Mirror 2 PC-Adventure Spiel](https://www.jan-siefken.com/black-mirror-2/)
  - Published: 2009-09-29
  - Modified: 2009-09-29
  - URL: https://www.jan-siefken.com/black-mirror-2/

- [Falsche Versprechen in der Werbung](https://www.jan-siefken.com/falsche-versprechen-werbung/)
  - Published: 2009-09-29
  - Modified: 2009-09-29
  - URL: https://www.jan-siefken.com/falsche-versprechen-werbung/

- [Fuer neuen Job die Branche wechseln](https://www.jan-siefken.com/jobsuche-arbeit/)
  - Published: 2009-09-29
  - Modified: 2009-09-29
  - URL: https://www.jan-siefken.com/jobsuche-arbeit/

- [Bioshock 2 Sea of Dreams – Action-Rollenspiel](https://www.jan-siefken.com/bioshock-2/)
  - Published: 2009-09-21
  - Modified: 2009-09-21
  - URL: https://www.jan-siefken.com/bioshock-2/

- [Flachbildfernseher mit Internet-Zugang](https://www.jan-siefken.com/flachbildfernseher-internet/)
  - Published: 2009-09-02
  - Modified: 2009-09-02
  - URL: https://www.jan-siefken.com/flachbildfernseher-internet/

- [Drag Me to Hell](https://www.jan-siefken.com/drag-me-to-hell/)
  - Published: 2009-08-28
  - Modified: 2009-08-28
  - URL: https://www.jan-siefken.com/drag-me-to-hell/

- [Apple iPhone – Studie erklaert den Erfolg](https://www.jan-siefken.com/apple-iphone-studie/)
  - Published: 2009-08-27
  - Modified: 2009-08-27
  - URL: https://www.jan-siefken.com/apple-iphone-studie/

- [Deutsche Unternehmen senken Personalkosten](https://www.jan-siefken.com/deutsche-unternehmen-senken-personalkosten/)
  - Published: 2009-08-27
  - Modified: 2009-08-27
  - URL: https://www.jan-siefken.com/deutsche-unternehmen-senken-personalkosten/

- [Alice Service-Studie 2009](https://www.jan-siefken.com/alice-service-studie/)
  - Published: 2009-08-26
  - Modified: 2009-08-26
  - URL: https://www.jan-siefken.com/alice-service-studie/

- [Netbook Asus Eee PC T91 im Test](https://www.jan-siefken.com/eee-pc-t91/)
  - Published: 2009-08-25
  - Modified: 2009-08-25
  - URL: https://www.jan-siefken.com/eee-pc-t91/

- [Spam in Web 2.0 Netzwerken](https://www.jan-siefken.com/spam-web-2-0-netzwerke/)
  - Published: 2009-08-25
  - Modified: 2009-08-25
  - URL: https://www.jan-siefken.com/spam-web-2-0-netzwerke/

- [Phishing Gefahr fuer Facebook User](https://www.jan-siefken.com/phishing-facebook/)
  - Published: 2009-08-18
  - Modified: 2009-08-18
  - URL: https://www.jan-siefken.com/phishing-facebook/

- [Inglourious Basterds – Film von Quentin Tarantino](https://www.jan-siefken.com/inglourious-basterds/)
  - Published: 2009-08-17
  - Modified: 2009-08-17
  - URL: https://www.jan-siefken.com/inglourious-basterds/

- [Samsung Hochleistungs-SSD mit 256 GB fuer PC-Spiele](https://www.jan-siefken.com/ssd-mit-256-gb/)
  - Published: 2009-08-17
  - Modified: 2009-08-17
  - URL: https://www.jan-siefken.com/ssd-mit-256-gb/

- [Fuer Maenner ist Muenchen angeblich die beste deutsche Stadt](https://www.jan-siefken.com/muenchen/)
  - Published: 2009-08-17
  - Modified: 2009-08-17
  - URL: https://www.jan-siefken.com/muenchen/

- [Archivieren von Digitalfotos](https://www.jan-siefken.com/digitalfotos-archivieren/)
  - Published: 2009-08-17
  - Modified: 2009-08-17
  - URL: https://www.jan-siefken.com/digitalfotos-archivieren/

- [Final Destination 4 – Kino Trailer](https://www.jan-siefken.com/final-destination-4/)
  - Published: 2009-08-14
  - Modified: 2009-08-14
  - URL: https://www.jan-siefken.com/final-destination-4/

- [Videospiele-Industrie trotz Rezession auf Wachstumskurs](https://www.jan-siefken.com/videospiele-industrie/)
  - Published: 2009-08-12
  - Modified: 2009-08-12
  - URL: https://www.jan-siefken.com/videospiele-industrie/

- [Triumph Adler Alphatronic PC](https://www.jan-siefken.com/alphatronic-pc/)
  - Published: 2009-08-12
  - Modified: 2009-08-12
  - URL: https://www.jan-siefken.com/alphatronic-pc/

- [AssaultCube 3D Shooter freeware](https://www.jan-siefken.com/assaultcube-3d-shooter/)
  - Published: 2009-08-11
  - Modified: 2009-08-11
  - URL: https://www.jan-siefken.com/assaultcube-3d-shooter/

- [Saw 6 Trailer](https://www.jan-siefken.com/saw-6-trailer/)
  - Published: 2009-08-11
  - Modified: 2009-08-11
  - URL: https://www.jan-siefken.com/saw-6-trailer/

- [DVB-T-Sticks fuer mobilen Fernsehempfang](https://www.jan-siefken.com/dvb-t-stick/)
  - Published: 2009-08-06
  - Modified: 2009-08-06
  - URL: https://www.jan-siefken.com/dvb-t-stick/

- [Mobilfunk – Kunden verstehen Handy Tarife nicht](https://www.jan-siefken.com/handytarife/)
  - Published: 2009-08-05
  - Modified: 2009-08-05
  - URL: https://www.jan-siefken.com/handytarife/

- [Sicherheitsrisiko Facebook-Widgets](https://www.jan-siefken.com/facebook-widgets/)
  - Published: 2009-08-05
  - Modified: 2009-08-05
  - URL: https://www.jan-siefken.com/facebook-widgets/

- [Computer-Prozessoren im Test](https://www.jan-siefken.com/computer-prozessoren/)
  - Published: 2009-08-04
  - Modified: 2009-08-04
  - URL: https://www.jan-siefken.com/computer-prozessoren/

- [Alice in Wonderland Trailer 2010](https://www.jan-siefken.com/alice-in-wonderland/)
  - Published: 2009-07-28
  - Modified: 2009-07-28
  - URL: https://www.jan-siefken.com/alice-in-wonderland/

- [Mobiles Internet – Prepaid-Tarife](https://www.jan-siefken.com/mobiles-internet/)
  - Published: 2009-07-28
  - Modified: 2009-07-28
  - URL: https://www.jan-siefken.com/mobiles-internet/

- [Kostenfalle Verbraucherkreditvertrag](https://www.jan-siefken.com/verbraucherkredit/)
  - Published: 2009-07-28
  - Modified: 2009-07-28
  - URL: https://www.jan-siefken.com/verbraucherkredit/

- [Bundestagswahl wird so teuer wie nie](https://www.jan-siefken.com/bundestagswahl/)
  - Published: 2009-07-28
  - Modified: 2009-07-28
  - URL: https://www.jan-siefken.com/bundestagswahl/

- [Sam Raimi Regisseur bei Warcraft-Film](https://www.jan-siefken.com/sam-raimi-warcraft-film/)
  - Published: 2009-07-22
  - Modified: 2009-07-22
  - URL: https://www.jan-siefken.com/sam-raimi-warcraft-film/

- [Demo gegen Verbot von Action-Computerspielen](https://www.jan-siefken.com/demo-verbot-computerspiele/)
  - Published: 2009-07-22
  - Modified: 2009-07-22
  - URL: https://www.jan-siefken.com/demo-verbot-computerspiele/

- [HDTV-Festplatten-Receiver](https://www.jan-siefken.com/hdtv-festplatten-receiver/)
  - Published: 2009-07-20
  - Modified: 2009-07-20
  - URL: https://www.jan-siefken.com/hdtv-festplatten-receiver/

- [Trojaner beherrschen die Malware-Industrie](https://www.jan-siefken.com/trojaner-malware/)
  - Published: 2009-07-10
  - Modified: 2009-07-10
  - URL: https://www.jan-siefken.com/trojaner-malware/

- [40 Jahre Mondlandung – „Der Raketenmann“](https://www.jan-siefken.com/40-jahre-mondlandung/)
  - Published: 2009-07-10
  - Modified: 2009-07-10
  - URL: https://www.jan-siefken.com/40-jahre-mondlandung/

- [Praxisleitfaden E-Commerce als PDF kostenlos zum download](https://www.jan-siefken.com/praxisleitfaden-e-commerce/)
  - Published: 2009-07-10
  - Modified: 2009-07-10
  - URL: https://www.jan-siefken.com/praxisleitfaden-e-commerce/

- [WordPress 2.8.1 automatic upgrade failed](https://www.jan-siefken.com/wordpress-2-8-1-automatic-upgrade-failed/)
  - Published: 2009-07-10
  - Modified: 2009-07-10
  - URL: https://www.jan-siefken.com/wordpress-2-8-1-automatic-upgrade-failed/

- [Grillen ist (angeblich) Maennersache](https://www.jan-siefken.com/grillen/)
  - Published: 2009-07-10
  - Modified: 2009-07-10
  - URL: https://www.jan-siefken.com/grillen/

- [Boulevardzeitung hoert Handys ab](https://www.jan-siefken.com/boulevardzeitung-hoert-handys-ab/)
  - Published: 2009-07-10
  - Modified: 2009-07-10
  - URL: https://www.jan-siefken.com/boulevardzeitung-hoert-handys-ab/

- [Volvo the Game – kostenloses 3D Rennspiel](https://www.jan-siefken.com/volvo-the-game-kostenloses-3d-rennspiel/)
  - Published: 2009-07-09
  - Modified: 2009-07-09
  - URL: https://www.jan-siefken.com/volvo-the-game-kostenloses-3d-rennspiel/

- [Neue Heimatprofile im studiVZ und meinVZ](https://www.jan-siefken.com/neue-heimatprofile-im-studivz-und-meinvz/)
  - Published: 2009-07-09
  - Modified: 2009-07-09
  - URL: https://www.jan-siefken.com/neue-heimatprofile-im-studivz-und-meinvz/

- [Vodafone Ein-Marken-Strategie stellt Kunden in Mittelpunkt](https://www.jan-siefken.com/vodafone/)
  - Published: 2009-07-09
  - Modified: 2009-07-09
  - URL: https://www.jan-siefken.com/vodafone/

- [DSL-Router mit WLAN-Schnittstelle](https://www.jan-siefken.com/dsl-router-mit-wlan-schnittstelle/)
  - Published: 2009-07-09
  - Modified: 2009-07-09
  - URL: https://www.jan-siefken.com/dsl-router-mit-wlan-schnittstelle/

- [Media Markt-TV-Jubilaeumsaktion](https://www.jan-siefken.com/media-markt-tv-jubilaeumsaktion/)
  - Published: 2009-07-09
  - Modified: 2009-07-09
  - URL: https://www.jan-siefken.com/media-markt-tv-jubilaeumsaktion/

- [Michael Jackson letztes Video](https://www.jan-siefken.com/michael-jackson-letztes-video/)
  - Published: 2009-07-08
  - Modified: 2009-07-08
  - URL: https://www.jan-siefken.com/michael-jackson-letztes-video/

- [Hamburg Bild – Alster und Rathaus](https://www.jan-siefken.com/hamburg-bild-alster-und-rathaus/)
  - Published: 2009-07-08
  - Modified: 2009-07-08
  - URL: https://www.jan-siefken.com/hamburg-bild-alster-und-rathaus/

- [Arbeitsspeicher defekte RAM-Module testen](https://www.jan-siefken.com/arbeitsspeicher-defekte-ram-module-testen/)
  - Published: 2009-07-06
  - Modified: 2009-07-06
  - URL: https://www.jan-siefken.com/arbeitsspeicher-defekte-ram-module-testen/

- [„Bandidas“ mit Salma Hayek und Penélope Cruz](https://www.jan-siefken.com/bandidas/)
  - Published: 2009-06-30
  - Modified: 2009-06-30
  - URL: https://www.jan-siefken.com/bandidas/

- [IT-Arbeitsmarkt – noch keine Belebung in Sicht](https://www.jan-siefken.com/it-arbeitsmarkt/)
  - Published: 2009-06-30
  - Modified: 2009-06-30
  - URL: https://www.jan-siefken.com/it-arbeitsmarkt/

- [Social Media auf Reise-Webseiten](https://www.jan-siefken.com/social-media-auf-reise-webseiten/)
  - Published: 2009-06-30
  - Modified: 2009-06-30
  - URL: https://www.jan-siefken.com/social-media-auf-reise-webseiten/

- [ATX Motherboard mit ECC Funktion](https://www.jan-siefken.com/atx-motherboard-mit-ecc-funktion/)
  - Published: 2009-06-30
  - Modified: 2009-06-30
  - URL: https://www.jan-siefken.com/atx-motherboard-mit-ecc-funktion/

- [Wenn der Blitz in den PC einschlaegt](https://www.jan-siefken.com/wenn-der-blitz-in-den-pc-einschlaegt/)
  - Published: 2009-06-30
  - Modified: 2009-06-30
  - URL: https://www.jan-siefken.com/wenn-der-blitz-in-den-pc-einschlaegt/

- [iPhone 3GS – Hitzeprobleme moeglich?](https://www.jan-siefken.com/iphone-3gs-hitzeprobleme-moeglich/)
  - Published: 2009-06-30
  - Modified: 2009-06-30
  - URL: https://www.jan-siefken.com/iphone-3gs-hitzeprobleme-moeglich/

- [Michael Jackson – Earth Song](https://www.jan-siefken.com/michael-jackson-earth-song/)
  - Published: 2009-06-29
  - Modified: 2009-06-29
  - URL: https://www.jan-siefken.com/michael-jackson-earth-song/

- [Laufzeit von Notebooks verlaengern](https://www.jan-siefken.com/laufzeit-von-notebooks-verlaengern/)
  - Published: 2009-06-28
  - Modified: 2009-06-28
  - URL: https://www.jan-siefken.com/laufzeit-von-notebooks-verlaengern/

- [Avira AntiVir Virenscanner fuer Windows 7](https://www.jan-siefken.com/virenscanner-windows-7/)
  - Published: 2009-06-24
  - Modified: 2009-06-24
  - URL: https://www.jan-siefken.com/virenscanner-windows-7/

- [Lehrerbenotung im Internet auf Spickmich bleibt erlaubt](https://www.jan-siefken.com/lehrerbenotung-spickmich/)
  - Published: 2009-06-24
  - Modified: 2009-06-24
  - URL: https://www.jan-siefken.com/lehrerbenotung-spickmich/

- [Within The Woods Kurzfilm von Sam Raimi](https://www.jan-siefken.com/within-the-woods-kurzfilm/)
  - Published: 2009-06-23
  - Modified: 2009-06-23
  - URL: https://www.jan-siefken.com/within-the-woods-kurzfilm/

- [Freeware Backup-Programm](https://www.jan-siefken.com/freeware-backup-programm/)
  - Published: 2009-06-17
  - Modified: 2009-06-17
  - URL: https://www.jan-siefken.com/freeware-backup-programm/

- [Reisevorbereitung im Internet](https://www.jan-siefken.com/reisevorbereitung-im-internet/)
  - Published: 2009-06-16
  - Modified: 2009-06-16
  - URL: https://www.jan-siefken.com/reisevorbereitung-im-internet/

- [Trend Micro warnt vor Internet-Abzocke](https://www.jan-siefken.com/trend-micro-warnt-vor-internet-abzocke/)
  - Published: 2009-06-16
  - Modified: 2009-06-16
  - URL: https://www.jan-siefken.com/trend-micro-warnt-vor-internet-abzocke/

- [Geotagging im Web 2.0](https://www.jan-siefken.com/geotagging-im-web-2-0/)
  - Published: 2009-06-16
  - Modified: 2009-06-16
  - URL: https://www.jan-siefken.com/geotagging-im-web-2-0/

- [Poteste im Iran gegen Ahmadinedschad](https://www.jan-siefken.com/iran/)
  - Published: 2009-06-16
  - Modified: 2009-06-16
  - URL: https://www.jan-siefken.com/iran/

- [Notebook ASUS M60VP](https://www.jan-siefken.com/notebook-asus-m60vp/)
  - Published: 2009-06-11
  - Modified: 2009-06-11
  - URL: https://www.jan-siefken.com/notebook-asus-m60vp/

- [WordPress 2.8 alias Baker](https://www.jan-siefken.com/wordpress-2-8-alias-baker/)
  - Published: 2009-06-11
  - Modified: 2009-06-12
  - URL: https://www.jan-siefken.com/wordpress-2-8-alias-baker/

- [Tour de France 2009](https://www.jan-siefken.com/tour-de-france-2009/)
  - Published: 2009-06-11
  - Modified: 2009-06-11
  - URL: https://www.jan-siefken.com/tour-de-france-2009/

- [iPhone 3G S – Was bringt das neue Handy?](https://www.jan-siefken.com/iphone-3g-s/)
  - Published: 2009-06-09
  - Modified: 2009-06-09
  - URL: https://www.jan-siefken.com/iphone-3g-s/

- [Green IT und die Wirtschaftskrise](https://www.jan-siefken.com/green-it-und-die-wirtschaftskrise/)
  - Published: 2009-06-02
  - Modified: 2009-06-02
  - URL: https://www.jan-siefken.com/green-it-und-die-wirtschaftskrise/

- [Clint Eastwood in „Million Dollar Baby“](https://www.jan-siefken.com/clint-eastwood-in-million-dollar-baby/)
  - Published: 2009-06-02
  - Modified: 2009-06-02
  - URL: https://www.jan-siefken.com/clint-eastwood-in-million-dollar-baby/

- [tel-domain – die neue Telefon-Domain](https://www.jan-siefken.com/tel-domain/)
  - Published: 2009-05-23
  - Modified: 2009-05-23
  - URL: https://www.jan-siefken.com/tel-domain/

- [Horst Koehler bleibt Bundespraesident](https://www.jan-siefken.com/horst-koehler-bleibt-bundespraesident/)
  - Published: 2009-05-23
  - Modified: 2009-05-23
  - URL: https://www.jan-siefken.com/horst-koehler-bleibt-bundespraesident/

- [DOS x86 Emulator](https://www.jan-siefken.com/dos-x86-emulator/)
  - Published: 2009-05-22
  - Modified: 2009-05-22
  - URL: https://www.jan-siefken.com/dos-x86-emulator/

- [Linux Software fuer Videobearbeitung](https://www.jan-siefken.com/linux-software-videobearbeitung/)
  - Published: 2009-05-16
  - Modified: 2009-05-16
  - URL: https://www.jan-siefken.com/linux-software-videobearbeitung/

- [IT-Trends 2009](https://www.jan-siefken.com/it-trends-2009/)
  - Published: 2009-05-16
  - Modified: 2009-05-16
  - URL: https://www.jan-siefken.com/it-trends-2009/

- [Twitter-Schlagwort #twitterpornnames Security Alert](https://www.jan-siefken.com/twitterpornnames/)
  - Published: 2009-05-16
  - Modified: 2009-05-16
  - URL: https://www.jan-siefken.com/twitterpornnames/

- [Wolfram Alpha – neue Fragen-Suchmaschine](https://www.jan-siefken.com/wolfram-alpha/)
  - Published: 2009-05-16
  - Modified: 2012-07-29
  - URL: https://www.jan-siefken.com/wolfram-alpha/

- [OpenOffice 3.1 steht zum download bereit](https://www.jan-siefken.com/openoffice-31/)
  - Published: 2009-05-08
  - Modified: 2009-05-08
  - URL: https://www.jan-siefken.com/openoffice-31/

- [Duke Nukem Forever – 3D Shooter vor dem Aus!](https://www.jan-siefken.com/duke-nukem-forever/)
  - Published: 2009-05-07
  - Modified: 2009-05-08
  - URL: https://www.jan-siefken.com/duke-nukem-forever/

- [Laeuft Windows 7 auf Netbooks?](https://www.jan-siefken.com/windows-7-auf-netbook/)
  - Published: 2009-05-06
  - Modified: 2009-05-06
  - URL: https://www.jan-siefken.com/windows-7-auf-netbook/

- [Mozilla Sunbird – kostenloser Terminplaner](https://www.jan-siefken.com/mozilla-sunbird/)
  - Published: 2009-05-04
  - Modified: 2009-05-04
  - URL: https://www.jan-siefken.com/mozilla-sunbird/

- [Amazon an der Spitze der Shopping-Seiten](https://www.jan-siefken.com/amazon/)
  - Published: 2009-05-04
  - Modified: 2009-05-04
  - URL: https://www.jan-siefken.com/amazon/

- [Furcht vor Schweinegrippe nutzen Spammer aus](https://www.jan-siefken.com/schweinegrippe-e-mail-spam/)
  - Published: 2009-04-29
  - Modified: 2009-04-29
  - URL: https://www.jan-siefken.com/schweinegrippe-e-mail-spam/

- [IT Job – Anforderungen an Informatiker nehmen zu](https://www.jan-siefken.com/it-job-anforderungen/)
  - Published: 2009-04-29
  - Modified: 2009-04-29
  - URL: https://www.jan-siefken.com/it-job-anforderungen/

- [NVIDIA GeForce 3D Vision](https://www.jan-siefken.com/nvidia-geforce-3d-vision/)
  - Published: 2009-04-28
  - Modified: 2009-05-26
  - URL: https://www.jan-siefken.com/nvidia-geforce-3d-vision/

- [Werbespot Loewe Sound „Fernbedienung“ – Scholz-Friends](https://www.jan-siefken.com/werbespot-loewe-sound-fernbedienung/)
  - Published: 2009-04-28
  - Modified: 2009-04-28
  - URL: https://www.jan-siefken.com/werbespot-loewe-sound-fernbedienung/

- [Online-Wahlkampf – Parteien auf studiVZ](https://www.jan-siefken.com/wahlkampf-parteien-studivz/)
  - Published: 2009-04-27
  - Modified: 2009-04-27
  - URL: https://www.jan-siefken.com/wahlkampf-parteien-studivz/

- [Ueber 85 Millionen SMS bei T-Moblile versendet](https://www.jan-siefken.com/sms-t-moblile/)
  - Published: 2009-04-27
  - Modified: 2009-04-27
  - URL: https://www.jan-siefken.com/sms-t-moblile/

- [Yahoo schliesst Homepage-Dienst GeoCities](https://www.jan-siefken.com/geocities/)
  - Published: 2009-04-25
  - Modified: 2009-04-25
  - URL: https://www.jan-siefken.com/geocities/

- [Space Invaders Spiele Klassiker – lustige Videos](https://www.jan-siefken.com/space-invaders-video/)
  - Published: 2009-04-24
  - Modified: 2009-04-24
  - URL: https://www.jan-siefken.com/space-invaders-video/

- [Johannes B. Kerner wechselt zu Sat1](https://www.jan-siefken.com/johannes-b-kerner-wechselt-zu-sat1/)
  - Published: 2009-04-23
  - Modified: 2009-04-23
  - URL: https://www.jan-siefken.com/johannes-b-kerner-wechselt-zu-sat1/

- [Wikipedia – Partnerschaft mit Mobilfunkbetreiber Orange](https://www.jan-siefken.com/wikipedia/)
  - Published: 2009-04-23
  - Modified: 2009-04-23
  - URL: https://www.jan-siefken.com/wikipedia/

- [Internet Videorekorder fuer privaten Gebrauch zulaessig](https://www.jan-siefken.com/internet-videorekorder/)
  - Published: 2009-04-23
  - Modified: 2009-04-23
  - URL: https://www.jan-siefken.com/internet-videorekorder/

- [Handynetz-Ausfall und T-Mobile-Reaktion](https://www.jan-siefken.com/handynetz-ausfall-t-mobile/)
  - Published: 2009-04-23
  - Modified: 2009-04-23
  - URL: https://www.jan-siefken.com/handynetz-ausfall-t-mobile/

- [Oel am Nordpol – Bald erste Bohrungen in der Arktis?](https://www.jan-siefken.com/oel-am-nordpol/)
  - Published: 2009-04-23
  - Modified: 2009-04-23
  - URL: https://www.jan-siefken.com/oel-am-nordpol/

- [T-Offline bei T-Mobile – Handynetz ausser Betrieb](https://www.jan-siefken.com/t-mobile/)
  - Published: 2009-04-22
  - Modified: 2009-04-22
  - URL: https://www.jan-siefken.com/t-mobile/

- [Neue Notebooks der ASUS N-Serie im Computer-Fachhandel erhaeltlich](https://www.jan-siefken.com/notebook-asus/)
  - Published: 2009-04-22
  - Modified: 2009-04-22
  - URL: https://www.jan-siefken.com/notebook-asus/

- [1. Mai – Tag der Arbeit verliert an Bedeutung](https://www.jan-siefken.com/tag-der-arbeit/)
  - Published: 2009-04-22
  - Modified: 2009-04-22
  - URL: https://www.jan-siefken.com/tag-der-arbeit/

- [INXS – Never Tear Us Apart – Musikvideo](https://www.jan-siefken.com/inxs/)
  - Published: 2009-04-21
  - Modified: 2009-04-21
  - URL: https://www.jan-siefken.com/inxs/

- [Kommentar zum Datenschutz – Lidl, Telekom](https://www.jan-siefken.com/datenschutz-lidl-telekom/)
  - Published: 2009-04-21
  - Modified: 2009-04-21
  - URL: https://www.jan-siefken.com/datenschutz-lidl-telekom/

- [WLAN-Sicherheit – Studie IT-Sicherheit](https://www.jan-siefken.com/wlan-sicherheit/)
  - Published: 2009-04-21
  - Modified: 2009-04-21
  - URL: https://www.jan-siefken.com/wlan-sicherheit/

- [Preisgrenzen fuer SMS-Versand im Ausland](https://www.jan-siefken.com/sms-versand-ausland/)
  - Published: 2009-04-21
  - Modified: 2009-04-21
  - URL: https://www.jan-siefken.com/sms-versand-ausland/

- [Computer Festplatte aufraeumen fuer mehr Speicherplatz](https://www.jan-siefken.com/festplatte-aufraeumen/)
  - Published: 2009-04-21
  - Modified: 2009-04-21
  - URL: https://www.jan-siefken.com/festplatte-aufraeumen/

- [CDU fordert Youtube Registrierung mit Personalausweisnummer](https://www.jan-siefken.com/youtube-registrierung/)
  - Published: 2009-04-20
  - Modified: 2009-04-20
  - URL: https://www.jan-siefken.com/youtube-registrierung/

- [TV Tipp: Mr. Ripley und die Kunst des Toetens](https://www.jan-siefken.com/mr-ripley/)
  - Published: 2009-04-17
  - Modified: 2009-04-17
  - URL: https://www.jan-siefken.com/mr-ripley/

- [Internetsperren – einige Internetprovider unterschreiben freiwillig](https://www.jan-siefken.com/internetsperren-internetprovider/)
  - Published: 2009-04-17
  - Modified: 2009-04-17
  - URL: https://www.jan-siefken.com/internetsperren-internetprovider/

- [Shuttle Mini-PC Nettop mit SUSE Linux Betriebssystem](https://www.jan-siefken.com/shuttle-mini-pc-nettop/)
  - Published: 2009-04-17
  - Modified: 2009-04-17
  - URL: https://www.jan-siefken.com/shuttle-mini-pc-nettop/

- [Frogger Flash Game – Onlinespiel](https://www.jan-siefken.com/frogger-flash-game/)
  - Published: 2009-04-17
  - Modified: 2009-04-17
  - URL: https://www.jan-siefken.com/frogger-flash-game/

- [Wirtschaftskrise erfasst Cyberkriminelle – Preisverfall bei Spam](https://www.jan-siefken.com/wirtschaftskrise-preisverfall-spam/)
  - Published: 2009-04-17
  - Modified: 2009-04-17
  - URL: https://www.jan-siefken.com/wirtschaftskrise-preisverfall-spam/

- [No-Angels-Saengerin – Gericht verbietet Berichterstattung](https://www.jan-siefken.com/no-angels-saengerin/)
  - Published: 2009-04-17
  - Modified: 2009-04-17
  - URL: https://www.jan-siefken.com/no-angels-saengerin/

- [Depeche Mode – Wrong – Musikvideo](https://www.jan-siefken.com/depeche-mode/)
  - Published: 2009-04-16
  - Modified: 2009-04-16
  - URL: https://www.jan-siefken.com/depeche-mode/

- [PC Game – U-Bahn-Simulator – Spieletest](https://www.jan-siefken.com/u-bahn-simulator-game/)
  - Published: 2009-04-16
  - Modified: 2009-04-16
  - URL: https://www.jan-siefken.com/u-bahn-simulator-game/

- [China holt in der Mikroelektronik auf – IT Standort Europa gefaehrdet?](https://www.jan-siefken.com/china-it/)
  - Published: 2009-04-16
  - Modified: 2009-04-16
  - URL: https://www.jan-siefken.com/china-it/

- [Video fuer Surfer – surfer rides huge wave](https://www.jan-siefken.com/video-fuer-surfer/)
  - Published: 2009-04-16
  - Modified: 2009-04-16
  - URL: https://www.jan-siefken.com/video-fuer-surfer/

- [HP startet Videoportal Gabble](https://www.jan-siefken.com/gabble/)
  - Published: 2009-04-16
  - Modified: 2009-04-16
  - URL: https://www.jan-siefken.com/gabble/

- [PDF Dokumente kostenlos erstellen](https://www.jan-siefken.com/pdf/)
  - Published: 2009-04-16
  - Modified: 2009-04-16
  - URL: https://www.jan-siefken.com/pdf/

- [Bundesbuerger laut Umfrage gegen Reichensteuer](https://www.jan-siefken.com/reichensteuer/)
  - Published: 2009-04-16
  - Modified: 2009-04-16
  - URL: https://www.jan-siefken.com/reichensteuer/

- [Microsoft-Sicherheitsupdates April 2009](https://www.jan-siefken.com/microsoft-sicherheitsupdates/)
  - Published: 2009-04-15
  - Modified: 2009-04-15
  - URL: https://www.jan-siefken.com/microsoft-sicherheitsupdates/

- [Videos konvertieren – Freeware Videokonverter](https://www.jan-siefken.com/videos-konvertieren/)
  - Published: 2009-04-15
  - Modified: 2009-04-15
  - URL: https://www.jan-siefken.com/videos-konvertieren/

- [Virus Kido – auch bekannt unter Conficker und Downadup](https://www.jan-siefken.com/virus-kido/)
  - Published: 2009-04-15
  - Modified: 2009-04-15
  - URL: https://www.jan-siefken.com/virus-kido/

- [The Most Refreshing Videos on YouTube](https://www.jan-siefken.com/poptub/)
  - Published: 2009-04-14
  - Modified: 2009-04-14
  - URL: https://www.jan-siefken.com/poptub/

- [Browser Nutzung – Umfrage Statistik](https://www.jan-siefken.com/browser-nutzung/)
  - Published: 2009-04-14
  - Modified: 2009-04-14
  - URL: https://www.jan-siefken.com/browser-nutzung/

- [MP3 Musik zum download ohne DRM](https://www.jan-siefken.com/mp3-download/)
  - Published: 2009-04-14
  - Modified: 2009-04-14
  - URL: https://www.jan-siefken.com/mp3-download/

- [Twitter ist bei deutschen Jugendlichen unbeliebt](https://www.jan-siefken.com/twitter-studie/)
  - Published: 2009-04-14
  - Modified: 2009-04-14
  - URL: https://www.jan-siefken.com/twitter-studie/

- [Social networking – Sicherheit bei Web 2.0 Communities](https://www.jan-siefken.com/social-networking-sicherheit/)
  - Published: 2009-04-14
  - Modified: 2009-04-14
  - URL: https://www.jan-siefken.com/social-networking-sicherheit/

- [Windows XP – Microsoft Mainstream-Support endet](https://www.jan-siefken.com/windows-xp-support/)
  - Published: 2009-04-14
  - Modified: 2009-04-14
  - URL: https://www.jan-siefken.com/windows-xp-support/

- [NDR startet Mediathek mit Videos und Audio Files](https://www.jan-siefken.com/ndr-mediathek/)
  - Published: 2009-04-14
  - Modified: 2009-04-14
  - URL: https://www.jan-siefken.com/ndr-mediathek/

- [MySpace und Stern suchen die Stars von morgen](https://www.jan-siefken.com/stern-myspace-stars/)
  - Published: 2009-04-09
  - Modified: 2009-04-09
  - URL: https://www.jan-siefken.com/stern-myspace-stars/

- [Finanzkrise anderes Konsumverhalten – neue Wege im Marketing](https://www.jan-siefken.com/finanzkrise-konsumverhalten/)
  - Published: 2009-04-09
  - Modified: 2009-04-09
  - URL: https://www.jan-siefken.com/finanzkrise-konsumverhalten/

- [Internetsperren – Fragwuerdige Argumente](https://www.jan-siefken.com/internet-sperren/)
  - Published: 2009-04-09
  - Modified: 2009-04-09
  - URL: https://www.jan-siefken.com/internet-sperren/

- [Ostern PC Spiel Chicken Shoot Game](https://www.jan-siefken.com/ostern-pc-spiel/)
  - Published: 2009-04-08
  - Modified: 2009-04-08
  - URL: https://www.jan-siefken.com/ostern-pc-spiel/

- [7-Zip – kostenloses Packprogramm](https://www.jan-siefken.com/7-zip/)
  - Published: 2009-04-07
  - Modified: 2009-04-07
  - URL: https://www.jan-siefken.com/7-zip/

- [Mozilla plant neuen Browser Firefox.next „Namoroka“](https://www.jan-siefken.com/firefoxnext-namoroka/)
  - Published: 2009-04-07
  - Modified: 2009-04-07
  - URL: https://www.jan-siefken.com/firefoxnext-namoroka/

- [Harald Schmidt ueber Ex-Kompagnon Oliver Pocher](https://www.jan-siefken.com/harald-schmidt/)
  - Published: 2009-04-07
  - Modified: 2009-04-07
  - URL: https://www.jan-siefken.com/harald-schmidt/

- [Microsoft Windows XP – nur noch eingeschraenkter Support](https://www.jan-siefken.com/windows-xp/)
  - Published: 2009-04-06
  - Modified: 2009-04-06
  - URL: https://www.jan-siefken.com/windows-xp/

- [X-Men Origins – Wolverine im Kino](https://www.jan-siefken.com/wolverine/)
  - Published: 2009-04-06
  - Modified: 2009-04-06
  - URL: https://www.jan-siefken.com/wolverine/

- [Der Pate 2 – PC Action Spiel](https://www.jan-siefken.com/der-pate-2-pc-action-spiel/)
  - Published: 2009-04-06
  - Modified: 2009-04-06
  - URL: https://www.jan-siefken.com/der-pate-2-pc-action-spiel/

- [Trend zum E-Recruiting bei der der Personalbeschaffung](https://www.jan-siefken.com/e-recruiting/)
  - Published: 2009-04-06
  - Modified: 2009-04-06
  - URL: https://www.jan-siefken.com/e-recruiting/

- [Was ist Twitter – Twouble with Twitter – Video](https://www.jan-siefken.com/twitter-video/)
  - Published: 2009-04-03
  - Modified: 2009-04-03
  - URL: https://www.jan-siefken.com/twitter-video/

- [NVIDIA GeForce GTX 275 – neue Grafikkarte](https://www.jan-siefken.com/nvidia-geforce-gtx-275/)
  - Published: 2009-04-03
  - Modified: 2009-04-03
  - URL: https://www.jan-siefken.com/nvidia-geforce-gtx-275/

- [Adobe Photoshop CS4 – Kompendium](https://www.jan-siefken.com/adobe-photoshop-cs4-2/)
  - Published: 2009-04-03
  - Modified: 2009-04-03
  - URL: https://www.jan-siefken.com/adobe-photoshop-cs4-2/

- [Breitband Internet – Telekom ueberprueft Investitionen](https://www.jan-siefken.com/breitband-internet-telekom/)
  - Published: 2009-04-02
  - Modified: 2009-04-02
  - URL: https://www.jan-siefken.com/breitband-internet-telekom/

- [sevenload startet neue Videoportale in Asien](https://www.jan-siefken.com/sevenload/)
  - Published: 2009-04-02
  - Modified: 2009-04-02
  - URL: https://www.jan-siefken.com/sevenload/

- [Klarmobil schaltet unbliebtes Forum ab](https://www.jan-siefken.com/klarmobil/)
  - Published: 2009-04-02
  - Modified: 2009-04-02
  - URL: https://www.jan-siefken.com/klarmobil/

- [Notebooks unter 1000 Euro im Test](https://www.jan-siefken.com/notebooks/)
  - Published: 2009-04-02
  - Modified: 2009-04-02
  - URL: https://www.jan-siefken.com/notebooks/

- [Videolan Mediaplayer VLC neue Version 0.9.9](https://www.jan-siefken.com/videolan-mediaplayer-vlc/)
  - Published: 2009-04-01
  - Modified: 2009-04-01
  - URL: https://www.jan-siefken.com/videolan-mediaplayer-vlc/

- [ARD Radio Tatort – neues MP3 Hoerbuch zum download](https://www.jan-siefken.com/radio-tatort-hoerbuch/)
  - Published: 2009-04-01
  - Modified: 2009-04-01
  - URL: https://www.jan-siefken.com/radio-tatort-hoerbuch/

- [Ermittler-Debakel um das „Phantom von Heilbronn“](https://www.jan-siefken.com/phantom-von-heilbronn/)
  - Published: 2009-04-01
  - Modified: 2009-04-01
  - URL: https://www.jan-siefken.com/phantom-von-heilbronn/

- [YouTube sperrt Musikvideos in Deutschland](https://www.jan-siefken.com/youtube-musikvideos-gema/)
  - Published: 2009-04-01
  - Modified: 2009-04-01
  - URL: https://www.jan-siefken.com/youtube-musikvideos-gema/

- [Wikia Search soll geschlossen werden](https://www.jan-siefken.com/wikia-search/)
  - Published: 2009-04-01
  - Modified: 2009-04-01
  - URL: https://www.jan-siefken.com/wikia-search/

- [Arcor Internet-by-Call-Flatrate – neue Preise](https://www.jan-siefken.com/arcor-internet-by-call-flatrate/)
  - Published: 2009-03-31
  - Modified: 2009-03-31
  - URL: https://www.jan-siefken.com/arcor-internet-by-call-flatrate/

- [Fussball Wettmanipulation – angeblich auch bei HSV](https://www.jan-siefken.com/fussball-wettmanipulation/)
  - Published: 2009-03-31
  - Modified: 2009-03-31
  - URL: https://www.jan-siefken.com/fussball-wettmanipulation/

- [ASUS Eee PC 1000HE – Mini-Notebook](https://www.jan-siefken.com/asus-eee-pc-1000he/)
  - Published: 2009-03-31
  - Modified: 2009-03-31
  - URL: https://www.jan-siefken.com/asus-eee-pc-1000he/

- [Ostern Freeware 3D Spiel Ostereier Shooter](https://www.jan-siefken.com/ostern-freeware-3d-spiel/)
  - Published: 2009-03-31
  - Modified: 2012-07-29
  - URL: https://www.jan-siefken.com/ostern-freeware-3d-spiel/

- [Panda Antivirus Pro 2009 Beta fuer Windows 7](https://www.jan-siefken.com/antivirus-windows-7/)
  - Published: 2009-03-31
  - Modified: 2009-03-31
  - URL: https://www.jan-siefken.com/antivirus-windows-7/

- [Twitter-Addons fuer Unternehmen – TweetFunnel](https://www.jan-siefken.com/twitter-addons/)
  - Published: 2009-03-31
  - Modified: 2009-03-31
  - URL: https://www.jan-siefken.com/twitter-addons/

- [Schaeuble: Virtuelle Welt baut Hemmschwellen ab](https://www.jan-siefken.com/schaeuble-virtuelle-welt/)
  - Published: 2009-03-31
  - Modified: 2009-03-31
  - URL: https://www.jan-siefken.com/schaeuble-virtuelle-welt/

- [Eurythmics – Here Comes The Rain Again – Musikvideo](https://www.jan-siefken.com/eurythmics/)
  - Published: 2009-03-30
  - Modified: 2009-03-30
  - URL: https://www.jan-siefken.com/eurythmics/

- [Intel neue Server-Prozessoren der Xeon-5500-Serie](https://www.jan-siefken.com/intel-server-prozessoren/)
  - Published: 2009-03-30
  - Modified: 2009-03-30
  - URL: https://www.jan-siefken.com/intel-server-prozessoren/

- [Steuerrecht nachbessern um Finanzkrise zu entschaerfen](https://www.jan-siefken.com/steuern-finanzkrise/)
  - Published: 2009-03-30
  - Modified: 2009-03-30
  - URL: https://www.jan-siefken.com/steuern-finanzkrise/

- [Wie IT-Hersteller, Computer-Haendler und Dienstleister tricksen](https://www.jan-siefken.com/reklametricks-it-branche/)
  - Published: 2009-03-30
  - Modified: 2009-03-30
  - URL: https://www.jan-siefken.com/reklametricks-it-branche/

- [Neue Firefox Version 3.0.8 zum Download verfuegbar](https://www.jan-siefken.com/firefox-308/)
  - Published: 2009-03-29
  - Modified: 2009-03-29
  - URL: https://www.jan-siefken.com/firefox-308/

- [Schlaegt Computer-Virus „Conficker“ am 1. April zu?](https://www.jan-siefken.com/conficker/)
  - Published: 2009-03-29
  - Modified: 2009-03-29
  - URL: https://www.jan-siefken.com/conficker/

- [Antivirus Software G Data InternetSecurity gewinnt Test](https://www.jan-siefken.com/antivirus-software/)
  - Published: 2009-03-29
  - Modified: 2009-03-29
  - URL: https://www.jan-siefken.com/antivirus-software/

- [BattleForge Demo vom Echtzeit-Strategie Spiel](https://www.jan-siefken.com/battleforge-demo/)
  - Published: 2009-03-29
  - Modified: 2009-03-29
  - URL: https://www.jan-siefken.com/battleforge-demo/

- [Deutsche Bahn Daten-Affaire – angeblich auch Journalisten bespitzelt](https://www.jan-siefken.com/deutsche-bahn-daten-affaire/)
  - Published: 2009-03-29
  - Modified: 2009-03-29
  - URL: https://www.jan-siefken.com/deutsche-bahn-daten-affaire/

- [Twitter – „Ghostwriter“ als Marketing-Instrument der Superstars](https://www.jan-siefken.com/twitter-ghostwriter-stars/)
  - Published: 2009-03-29
  - Modified: 2009-03-29
  - URL: https://www.jan-siefken.com/twitter-ghostwriter-stars/

- [Microsoft – Shopping for Hardware versus Apple](https://www.jan-siefken.com/microsoft-shopping/)
  - Published: 2009-03-27
  - Modified: 2009-03-27
  - URL: https://www.jan-siefken.com/microsoft-shopping/

- [WLAN WPA-Verschluesselung heimlich ausgeschaltet](https://www.jan-siefken.com/wlan-wpa-verschluesselung/)
  - Published: 2009-03-27
  - Modified: 2009-03-27
  - URL: https://www.jan-siefken.com/wlan-wpa-verschluesselung/

- [Fuer welches Mobilfunkunternehmen wuerden Sie werben?](https://www.jan-siefken.com/mobilfunk-werbung/)
  - Published: 2009-03-27
  - Modified: 2009-03-27
  - URL: https://www.jan-siefken.com/mobilfunk-werbung/

- [Wird sich das E-Book in Deutschland durchsetzen?](https://www.jan-siefken.com/e-book-durchsetzen/)
  - Published: 2009-03-27
  - Modified: 2009-03-27
  - URL: https://www.jan-siefken.com/e-book-durchsetzen/

- [Beginn der Sommerzeit](https://www.jan-siefken.com/beginn-der-sommerzeit/)
  - Published: 2009-03-27
  - Modified: 2009-03-27
  - URL: https://www.jan-siefken.com/beginn-der-sommerzeit/

- [Resident Evil 5 Trailer](https://www.jan-siefken.com/resident-evil-5/)
  - Published: 2009-03-27
  - Modified: 2009-03-27
  - URL: https://www.jan-siefken.com/resident-evil-5/

- [WordPress Plugins Linkliste](https://www.jan-siefken.com/wordpress-plugins/)
  - Published: 2009-03-27
  - Modified: 2025-07-08
  - URL: https://www.jan-siefken.com/wordpress-plugins/

- [Mini PC – Shuttle XPC H7 4500H mit DVB-S-Empfang](https://www.jan-siefken.com/mini-pc-shuttle/)
  - Published: 2009-03-26
  - Modified: 2009-03-26
  - URL: https://www.jan-siefken.com/mini-pc-shuttle/

- [Gema freie Musik fuer Videos auf DVD](https://www.jan-siefken.com/gema-freie-musik-fuer-videos-auf-dvd/)
  - Published: 2009-03-26
  - Modified: 2009-03-26
  - URL: https://www.jan-siefken.com/gema-freie-musik-fuer-videos-auf-dvd/

- [Call of Duty: Modern Warfare 2 Video Trailer](https://www.jan-siefken.com/call-of-duty/)
  - Published: 2009-03-26
  - Modified: 2009-03-26
  - URL: https://www.jan-siefken.com/call-of-duty/

- [Joost Internet-TV in Deutschland ist online](https://www.jan-siefken.com/joost-internet-tv/)
  - Published: 2009-03-26
  - Modified: 2009-03-26
  - URL: https://www.jan-siefken.com/joost-internet-tv/

- [Rettung Skandalbank Hypo Real Estate noch teurer](https://www.jan-siefken.com/hypo-real-estate/)
  - Published: 2009-03-25
  - Modified: 2009-03-25
  - URL: https://www.jan-siefken.com/hypo-real-estate/

- [Damn Small Linux – 50 MB Betriebssystem](https://www.jan-siefken.com/damn-small-linux/)
  - Published: 2009-03-24
  - Modified: 2009-03-24
  - URL: https://www.jan-siefken.com/damn-small-linux/

- [Einheitliche Behoerdenrufnummer 115 startet](https://www.jan-siefken.com/behoerdenrufnummer-115/)
  - Published: 2009-03-24
  - Modified: 2009-03-24
  - URL: https://www.jan-siefken.com/behoerdenrufnummer-115/

- [Malware im BIOS – dauerhafter Virus moeglich](https://www.jan-siefken.com/malware-bios-virus/)
  - Published: 2009-03-24
  - Modified: 2009-03-24
  - URL: https://www.jan-siefken.com/malware-bios-virus/

- [China: Media Markt und Foxconn schliessen Partnerschaft](https://www.jan-siefken.com/media-markt-foxconn-china/)
  - Published: 2009-03-24
  - Modified: 2009-03-24
  - URL: https://www.jan-siefken.com/media-markt-foxconn-china/

- [Need for Speed – Shift Developer Interview](https://www.jan-siefken.com/need-for-speed-shift/)
  - Published: 2009-03-23
  - Modified: 2009-03-23
  - URL: https://www.jan-siefken.com/need-for-speed-shift/

- [Onlinedurchsuchung soll ausgeweitet werden](https://www.jan-siefken.com/onlinedurchsuchung-soll-ausgeweitet-werden/)
  - Published: 2009-03-23
  - Modified: 2009-03-23
  - URL: https://www.jan-siefken.com/onlinedurchsuchung-soll-ausgeweitet-werden/

- [Dell Cloud-Server mit Nehalem-Prozessor](https://www.jan-siefken.com/cloud-server-nehalem-prozessor/)
  - Published: 2009-03-23
  - Modified: 2009-03-23
  - URL: https://www.jan-siefken.com/cloud-server-nehalem-prozessor/

- [Studie European Trusted Brands 2009](https://www.jan-siefken.com/studie-european-trusted-brands-2009/)
  - Published: 2009-03-23
  - Modified: 2009-03-23
  - URL: https://www.jan-siefken.com/studie-european-trusted-brands-2009/

- [Adobe Photoshop CS4 – Video-Training](https://www.jan-siefken.com/adobe-photoshop-cs4/)
  - Published: 2009-03-20
  - Modified: 2009-03-20
  - URL: https://www.jan-siefken.com/adobe-photoshop-cs4/

- [Internet Explorer 8 Add-On Wettbewerb](https://www.jan-siefken.com/internet-explorer-8-empower/)
  - Published: 2009-03-20
  - Modified: 2009-03-20
  - URL: https://www.jan-siefken.com/internet-explorer-8-empower/

- [Internet Explorer 8 – Kompatibilitaetsmodus-META-Tag](https://www.jan-siefken.com/internet-explorer-8-kompatibilitaet/)
  - Published: 2009-03-20
  - Modified: 2009-03-20
  - URL: https://www.jan-siefken.com/internet-explorer-8-kompatibilitaet/

- [Alice Mobilfunk jetzt auch ohne DSL-Anschluss](https://www.jan-siefken.com/alice/)
  - Published: 2009-03-20
  - Modified: 2009-03-20
  - URL: https://www.jan-siefken.com/alice/

- [K-Meleon – schnelle Browser Alternative](https://www.jan-siefken.com/k-meleon-browser/)
  - Published: 2009-03-20
  - Modified: 2009-03-20
  - URL: https://www.jan-siefken.com/k-meleon-browser/

- [Werbung trotz Wirtschaftskrise?](https://www.jan-siefken.com/werbung-trotz-wirtschaftskrise/)
  - Published: 2009-03-20
  - Modified: 2009-03-20
  - URL: https://www.jan-siefken.com/werbung-trotz-wirtschaftskrise/

- [Winnenden – Geisel vom Amoklaeufer verhinderte groesseres Blutbad](https://www.jan-siefken.com/winnenden/)
  - Published: 2009-03-20
  - Modified: 2009-03-20
  - URL: https://www.jan-siefken.com/winnenden/

- [TV-News in der Krise – Internet laesst Quoten sinken](https://www.jan-siefken.com/tv-news-krise-internet/)
  - Published: 2009-03-20
  - Modified: 2009-03-20
  - URL: https://www.jan-siefken.com/tv-news-krise-internet/

- [Set Me Free – Empty Rooms](https://www.jan-siefken.com/set-me-free-empty-rooms/)
  - Published: 2009-03-19
  - Modified: 2009-03-19
  - URL: https://www.jan-siefken.com/set-me-free-empty-rooms/

- [Internet Explorer 8 im Test – Video](https://www.jan-siefken.com/internet-explorer-8-test-video/)
  - Published: 2009-03-19
  - Modified: 2009-03-19
  - URL: https://www.jan-siefken.com/internet-explorer-8-test-video/

- [My Bloody Valentine – neu im Kino](https://www.jan-siefken.com/my-bloody-valentine/)
  - Published: 2009-03-19
  - Modified: 2009-03-19
  - URL: https://www.jan-siefken.com/my-bloody-valentine/

- [Internet Explorer 8 Finalversion zum download](https://www.jan-siefken.com/internet-explorer-8-final/)
  - Published: 2009-03-19
  - Modified: 2009-03-19
  - URL: https://www.jan-siefken.com/internet-explorer-8-final/

- [IBM will eventuell Sun Microsystems kaufen](https://www.jan-siefken.com/ibm-will-eventuell-sun-microsystems-kaufen/)
  - Published: 2009-03-18
  - Modified: 2009-03-18
  - URL: https://www.jan-siefken.com/ibm-will-eventuell-sun-microsystems-kaufen/

- [DocMorris – Mehrwertsteuer kein Wettbewerbsvorteil](https://www.jan-siefken.com/docmorris/)
  - Published: 2009-03-18
  - Modified: 2009-03-18
  - URL: https://www.jan-siefken.com/docmorris/

- [Computerspiele als Risikofaktor fuer Gewalttaten?](https://www.jan-siefken.com/computerspiele-risikofaktor/)
  - Published: 2009-03-18
  - Modified: 2009-03-18
  - URL: https://www.jan-siefken.com/computerspiele-risikofaktor/

- [Die Computer-Kids steigen ins Berufsleben ein](https://www.jan-siefken.com/die-computer-kids-steigen-ins-berufsleben-ein/)
  - Published: 2009-03-18
  - Modified: 2009-03-18
  - URL: https://www.jan-siefken.com/die-computer-kids-steigen-ins-berufsleben-ein/

- [Videokonferenzen – Europa laeuft Trend hinterher](https://www.jan-siefken.com/videokonferenzen/)
  - Published: 2009-03-17
  - Modified: 2009-03-17
  - URL: https://www.jan-siefken.com/videokonferenzen/

- [Kundenzufriedenheit im Online-Banking ausbaufaehig](https://www.jan-siefken.com/kundenzufriedenheit-online-banking/)
  - Published: 2009-03-17
  - Modified: 2009-03-17
  - URL: https://www.jan-siefken.com/kundenzufriedenheit-online-banking/

- [Gimme Shelter – Spendenaufruf fuer Kongo auf Youtube](https://www.jan-siefken.com/gimme-shelter/)
  - Published: 2009-03-17
  - Modified: 2009-03-17
  - URL: https://www.jan-siefken.com/gimme-shelter/

- [Videokonverter als Freeware oder Open-Source](https://www.jan-siefken.com/videokonverter/)
  - Published: 2009-03-16
  - Modified: 2009-03-16
  - URL: https://www.jan-siefken.com/videokonverter/

- [Amoklauf Winnenden – Wie gefaehrlich sind Killerspiele?](https://www.jan-siefken.com/amoklauf-winnenden-killerspiele/)
  - Published: 2009-03-16
  - Modified: 2009-03-16
  - URL: https://www.jan-siefken.com/amoklauf-winnenden-killerspiele/

- [Bebo – AOL startet Social Network in Deutschland](https://www.jan-siefken.com/bebo/)
  - Published: 2009-03-16
  - Modified: 2009-03-16
  - URL: https://www.jan-siefken.com/bebo/

- [Leipziger Buchmesse 2009 – Video](https://www.jan-siefken.com/leipziger-buchmesse-2009-video/)
  - Published: 2009-03-14
  - Modified: 2009-03-14
  - URL: https://www.jan-siefken.com/leipziger-buchmesse-2009-video/

- [Leipziger Buchmesse 2009 – Livestream](https://www.jan-siefken.com/leipziger-buchmesse-livestream/)
  - Published: 2009-03-13
  - Modified: 2009-03-13
  - URL: https://www.jan-siefken.com/leipziger-buchmesse-livestream/

- [Internet Explorer 8 laut Microsoft schneller Browser](https://www.jan-siefken.com/internet-explorer-8-browser/)
  - Published: 2009-03-13
  - Modified: 2009-03-13
  - URL: https://www.jan-siefken.com/internet-explorer-8-browser/

- [Deutscher Filmpreis 2009](https://www.jan-siefken.com/deutscher-filmpreis-2009/)
  - Published: 2009-03-13
  - Modified: 2009-03-13
  - URL: https://www.jan-siefken.com/deutscher-filmpreis-2009/

- [Webkonferenzen und Live-Praesentationen ueber Internet](https://www.jan-siefken.com/webkonferenzen/)
  - Published: 2009-03-13
  - Modified: 2009-03-13
  - URL: https://www.jan-siefken.com/webkonferenzen/

- [Leipziger Buchmesse – Interview Podcast](https://www.jan-siefken.com/leipziger-buchmesse-podcast/)
  - Published: 2009-03-13
  - Modified: 2009-03-13
  - URL: https://www.jan-siefken.com/leipziger-buchmesse-podcast/

- [Preis der Leipziger Buchmesse 2009](https://www.jan-siefken.com/preis-der-leipziger-buchmesse-2009/)
  - Published: 2009-03-13
  - Modified: 2009-03-13
  - URL: https://www.jan-siefken.com/preis-der-leipziger-buchmesse-2009/

- [Amoklauf von Winnenden – Talk bei Domian – Video](https://www.jan-siefken.com/winnenden-video-domian/)
  - Published: 2009-03-12
  - Modified: 2009-03-12
  - URL: https://www.jan-siefken.com/winnenden-video-domian/

- [Mikogo – Screen Sharing Online Meeting Tool](https://www.jan-siefken.com/mikogo/)
  - Published: 2009-03-12
  - Modified: 2009-03-12
  - URL: https://www.jan-siefken.com/mikogo/

- [Werden E-Book Reader sich am Buchmarkt durchsetzen?](https://www.jan-siefken.com/e-book-reader/)
  - Published: 2009-03-11
  - Modified: 2009-03-11
  - URL: https://www.jan-siefken.com/e-book-reader/

- [Adobe Reader 9 – Acrobat – Sicherheitsupdate](https://www.jan-siefken.com/adobe-reader/)
  - Published: 2009-03-11
  - Modified: 2009-03-11
  - URL: https://www.jan-siefken.com/adobe-reader/

- [Cloud Computing – was ist das eigentlich?](https://www.jan-siefken.com/cloud-computing-2/)
  - Published: 2009-03-11
  - Modified: 2009-03-11
  - URL: https://www.jan-siefken.com/cloud-computing-2/

- [Flickr bietet Fotos auf gettyimages an](https://www.jan-siefken.com/flickr-fotos/)
  - Published: 2009-03-11
  - Modified: 2009-05-26
  - URL: https://www.jan-siefken.com/flickr-fotos/

- [Terminator 4 Salvation – Kino Trailer](https://www.jan-siefken.com/terminator-4/)
  - Published: 2009-03-11
  - Modified: 2009-03-11
  - URL: https://www.jan-siefken.com/terminator-4/

- [Sony E-Book-Reader PRS-505](https://www.jan-siefken.com/sony-e-book-reader-prs-505/)
  - Published: 2009-03-10
  - Modified: 2009-03-10
  - URL: https://www.jan-siefken.com/sony-e-book-reader-prs-505/

- [Haftung Forenbetreiber bei Nutzerbeitraegen](https://www.jan-siefken.com/haftung-forenbetreiber-bei-nutzerbeitraegen/)
  - Published: 2009-03-10
  - Modified: 2009-03-10
  - URL: https://www.jan-siefken.com/haftung-forenbetreiber-bei-nutzerbeitraegen/

- [Entwicklung digitales Pay-TV und IPTV](https://www.jan-siefken.com/digitales-pay-tv-iptv/)
  - Published: 2009-03-10
  - Modified: 2009-03-10
  - URL: https://www.jan-siefken.com/digitales-pay-tv-iptv/

- [Free CD to MP3 Converter Software](https://www.jan-siefken.com/cd-mp3-converter/)
  - Published: 2009-03-10
  - Modified: 2009-03-10
  - URL: https://www.jan-siefken.com/cd-mp3-converter/

- [Tom Clancy’s H.A.W.X. – PC Spiel](https://www.jan-siefken.com/tom-clancys-hawx/)
  - Published: 2009-03-10
  - Modified: 2009-03-10
  - URL: https://www.jan-siefken.com/tom-clancys-hawx/

- [BFG GeForce GTX 285 H2O Grafikkarte](https://www.jan-siefken.com/h2o-grafikkarte/)
  - Published: 2009-03-10
  - Modified: 2009-03-10
  - URL: https://www.jan-siefken.com/h2o-grafikkarte/

- [HD Camcorder MEDION life P47002 bei Aldi](https://www.jan-siefken.com/hd-camcorder/)
  - Published: 2009-03-06
  - Modified: 2009-03-06
  - URL: https://www.jan-siefken.com/hd-camcorder/

- [CeBIT 2009 – ASUS zeigt kabellosen LCD-Monitor](https://www.jan-siefken.com/cebit-2009-asus-lcd-monitor/)
  - Published: 2009-03-06
  - Modified: 2009-05-26
  - URL: https://www.jan-siefken.com/cebit-2009-asus-lcd-monitor/

- [E-Mails und Newsletter im Spamfilter](https://www.jan-siefken.com/e-mail-newsletter-spamfilter/)
  - Published: 2009-03-06
  - Modified: 2009-03-06
  - URL: https://www.jan-siefken.com/e-mail-newsletter-spamfilter/

- [Firefox 3.0.7 – Sicherheitsluecken beseitigt](https://www.jan-siefken.com/firefox/)
  - Published: 2009-03-05
  - Modified: 2009-03-05
  - URL: https://www.jan-siefken.com/firefox/

- [Warhammer 40000 – Dawn of War 2 – Strategiespiel](https://www.jan-siefken.com/warhammer-40000/)
  - Published: 2009-03-05
  - Modified: 2009-03-05
  - URL: https://www.jan-siefken.com/warhammer-40000/

- [Greys Anatomy – als PC Spiel](https://www.jan-siefken.com/greys-anatomy-als-pc-spiel/)
  - Published: 2009-03-05
  - Modified: 2009-03-05
  - URL: https://www.jan-siefken.com/greys-anatomy-als-pc-spiel/

- [Digitalkamera Rollei XS-8 Crystal](https://www.jan-siefken.com/digitalkamera-rollei-xs-8-crystal/)
  - Published: 2009-03-05
  - Modified: 2009-03-05
  - URL: https://www.jan-siefken.com/digitalkamera-rollei-xs-8-crystal/

- [ARD startet YouTube-Channel](https://www.jan-siefken.com/ard-startet-youtube-channel/)
  - Published: 2009-03-05
  - Modified: 2009-03-05
  - URL: https://www.jan-siefken.com/ard-startet-youtube-channel/

- [Cloud Computing – IT-Ressourcen „aus der Wolke“](https://www.jan-siefken.com/cloud-computing/)
  - Published: 2009-03-04
  - Modified: 2009-03-04
  - URL: https://www.jan-siefken.com/cloud-computing/

- [Apple Mac Pro mit Intel „Nehalem“ Xeon Prozessor](https://www.jan-siefken.com/apple-mac-pro/)
  - Published: 2009-03-03
  - Modified: 2009-03-03
  - URL: https://www.jan-siefken.com/apple-mac-pro/

- [Apple iPod touch – iPhone Software NDR Radio](https://www.jan-siefken.com/apple-ipod-touch-iphone/)
  - Published: 2009-03-02
  - Modified: 2009-03-02
  - URL: https://www.jan-siefken.com/apple-ipod-touch-iphone/

- [Beim Notebook auf den Einsatzzweck achten](https://www.jan-siefken.com/notebook/)
  - Published: 2009-03-02
  - Modified: 2009-03-02
  - URL: https://www.jan-siefken.com/notebook/

- [Ericsson und Vodafone auf der CeBIT](https://www.jan-siefken.com/ericsson-und-vodafone-auf-der-cebit/)
  - Published: 2009-03-02
  - Modified: 2009-03-02
  - URL: https://www.jan-siefken.com/ericsson-und-vodafone-auf-der-cebit/

- [Der Vorleser mit Kate Winslet](https://www.jan-siefken.com/der-vorleser-mit-kate-winslet/)
  - Published: 2009-03-01
  - Modified: 2009-03-01
  - URL: https://www.jan-siefken.com/der-vorleser-mit-kate-winslet/

- [Miniprojektoren mit LED-Technik](https://www.jan-siefken.com/miniprojektoren-mit-led-technik/)
  - Published: 2009-03-01
  - Modified: 2009-03-01
  - URL: https://www.jan-siefken.com/miniprojektoren-mit-led-technik/

- [Gran Torino – neuer Film mit Clint Eastwood](https://www.jan-siefken.com/gran-torino-clint-eastwood/)
  - Published: 2009-02-25
  - Modified: 2009-02-25
  - URL: https://www.jan-siefken.com/gran-torino-clint-eastwood/

- [Bild-Zeitung startet Promi-Werbekampagne](https://www.jan-siefken.com/bild-zeitung-startet-promi-werbekampagne/)
  - Published: 2009-02-25
  - Modified: 2009-02-25
  - URL: https://www.jan-siefken.com/bild-zeitung-startet-promi-werbekampagne/

- [Polarkreis 18 – Colour Of Snow](https://www.jan-siefken.com/polarkreis-18-colour-of-snow/)
  - Published: 2009-02-19
  - Modified: 2009-02-19
  - URL: https://www.jan-siefken.com/polarkreis-18-colour-of-snow/

- [Acer Netbook Aspire one D150](https://www.jan-siefken.com/acer-netbook-aspire-one-d150/)
  - Published: 2009-02-18
  - Modified: 2009-02-18
  - URL: https://www.jan-siefken.com/acer-netbook-aspire-one-d150/

- [Weltraumfluege fuer jedermann](https://www.jan-siefken.com/weltraumfluege/)
  - Published: 2009-02-18
  - Modified: 2009-02-18
  - URL: https://www.jan-siefken.com/weltraumfluege/

- [HP 2133 Mininote – preiswertes Mininotebook](https://www.jan-siefken.com/hp-2133-mininote-preiswertes-mininotebook/)
  - Published: 2009-02-18
  - Modified: 2009-02-18
  - URL: https://www.jan-siefken.com/hp-2133-mininote-preiswertes-mininotebook/

- [The Netsize Guide 2009](https://www.jan-siefken.com/the-netsize-guide-2009/)
  - Published: 2009-02-18
  - Modified: 2009-02-18
  - URL: https://www.jan-siefken.com/the-netsize-guide-2009/

- [Bernhard Brink – kein Dschungelcamp](https://www.jan-siefken.com/bernhard-brink-kein-dschungelcamp/)
  - Published: 2009-02-18
  - Modified: 2009-02-18
  - URL: https://www.jan-siefken.com/bernhard-brink-kein-dschungelcamp/

- [iPoint 3D – Fernbedienung wie in Science-Fiction-Film](https://www.jan-siefken.com/ipoint-3d/)
  - Published: 2009-02-18
  - Modified: 2009-02-18
  - URL: https://www.jan-siefken.com/ipoint-3d/

- [Polarkreis 18 – Allein Allein](https://www.jan-siefken.com/polarkreis-18-allein-allein/)
  - Published: 2009-02-17
  - Modified: 2009-02-17
  - URL: https://www.jan-siefken.com/polarkreis-18-allein-allein/

- [Gamingsender Giga wird eingestellt](https://www.jan-siefken.com/gamingsender-giga-wird-eingestellt/)
  - Published: 2009-02-13
  - Modified: 2009-02-13
  - URL: https://www.jan-siefken.com/gamingsender-giga-wird-eingestellt/

- [Battlefield 1943 – Pacific Trailer](https://www.jan-siefken.com/battlefield-1943-pacific-trailer/)
  - Published: 2009-02-13
  - Modified: 2009-02-13
  - URL: https://www.jan-siefken.com/battlefield-1943-pacific-trailer/

- [Software Made in Germany](https://www.jan-siefken.com/software-made-in-germany/)
  - Published: 2009-02-13
  - Modified: 2009-02-13
  - URL: https://www.jan-siefken.com/software-made-in-germany/

- [Mediaplayer DVB-T-Fernseher – SDHC-Videorecorder](https://www.jan-siefken.com/mediaplayer-dvb-t-fernseher-sdhc-videorecorder/)
  - Published: 2009-02-13
  - Modified: 2009-02-13
  - URL: https://www.jan-siefken.com/mediaplayer-dvb-t-fernseher-sdhc-videorecorder/

- [ZDF baut Engagement auf YouTube aus](https://www.jan-siefken.com/zdf-baut-engagement-auf-youtube-aus/)
  - Published: 2009-02-13
  - Modified: 2009-02-13
  - URL: https://www.jan-siefken.com/zdf-baut-engagement-auf-youtube-aus/

- [Windows Internet Explorer 8 – Beta](https://www.jan-siefken.com/windows-internet-explorer-8-beta/)
  - Published: 2009-01-28
  - Modified: 2009-03-03
  - URL: https://www.jan-siefken.com/windows-internet-explorer-8-beta/

- [Finanzmanagement als Erfolgsfaktor](https://www.jan-siefken.com/finanzmanagement-als-erfolgsfaktor/)
  - Published: 2009-01-12
  - Modified: 2009-01-12
  - URL: https://www.jan-siefken.com/finanzmanagement-als-erfolgsfaktor/

- [KfW-ifo-Mittelstandsbarometer](https://www.jan-siefken.com/kfw-ifo-mittelstandsbarometer/)
  - Published: 2009-01-12
  - Modified: 2009-01-12
  - URL: https://www.jan-siefken.com/kfw-ifo-mittelstandsbarometer/

- [Ego Shooter World of Padman – Xmas Version](https://www.jan-siefken.com/ego-shooter-world-of-padman-xmas-version/)
  - Published: 2008-12-04
  - Modified: 2008-12-04
  - URL: https://www.jan-siefken.com/ego-shooter-world-of-padman-xmas-version/

- [Asus Eee PC – Spiele – Pinguinrennen](https://www.jan-siefken.com/eee-pc-spiele/)
  - Published: 2008-11-12
  - Modified: 2012-07-29
  - URL: https://www.jan-siefken.com/eee-pc-spiele/

- [Left 4 Dead – Demo download](https://www.jan-siefken.com/left-4-dead-demo-download/)
  - Published: 2008-11-06
  - Modified: 2012-07-29
  - URL: https://www.jan-siefken.com/left-4-dead-demo-download/

- [Call of Duty – World at War](https://www.jan-siefken.com/call-of-duty-world-at-war/)
  - Published: 2008-11-05
  - Modified: 2008-11-05
  - URL: https://www.jan-siefken.com/call-of-duty-world-at-war/

- [Keltis Game – Strategiespiel PC-Spiel](https://www.jan-siefken.com/keltis-game-strategiespiel-pc-spiel/)
  - Published: 2008-11-05
  - Modified: 2008-11-05
  - URL: https://www.jan-siefken.com/keltis-game-strategiespiel-pc-spiel/

- [Finanzkrise und IT-Investitionen](https://www.jan-siefken.com/finanzkrise-und-it-investitionen/)
  - Published: 2008-11-03
  - Modified: 2008-11-03
  - URL: https://www.jan-siefken.com/finanzkrise-und-it-investitionen/

- [Finanzkrise steigert Online-Kriminalitaet](https://www.jan-siefken.com/finanzkrise-steigert-online-kriminalitaet/)
  - Published: 2008-10-29
  - Modified: 2008-10-29
  - URL: https://www.jan-siefken.com/finanzkrise-steigert-online-kriminalitaet/

- [Apple – MacBook – neues Design](https://www.jan-siefken.com/apple-macbook-neues-design/)
  - Published: 2008-10-15
  - Modified: 2008-10-15
  - URL: https://www.jan-siefken.com/apple-macbook-neues-design/

- [Adobe Flash Player 10](https://www.jan-siefken.com/adobe-flash-player-10/)
  - Published: 2008-10-15
  - Modified: 2008-10-15
  - URL: https://www.jan-siefken.com/adobe-flash-player-10/

- [3D Shooter Openarena auf Eee Pc](https://www.jan-siefken.com/3d-shooter-openarena-auf-eee-pc/)
  - Published: 2008-10-10
  - Modified: 2008-10-10
  - URL: https://www.jan-siefken.com/3d-shooter-openarena-auf-eee-pc/

- [Warhammer Online Game](https://www.jan-siefken.com/warhammer-online-game/)
  - Published: 2008-09-17
  - Modified: 2008-09-17
  - URL: https://www.jan-siefken.com/warhammer-online-game/

- [Tremulous – 3D-Shooter kostenlos mit Quake 3 Engine](https://www.jan-siefken.com/tremulous-3d-shooter-kostenlos-mit-quake-3-engine/)
  - Published: 2008-09-17
  - Modified: 2025-06-26
  - URL: https://www.jan-siefken.com/tremulous-3d-shooter-kostenlos-mit-quake-3-engine/

- [Mega Mario Freeware Super Mario Bros. 1 Clone](https://www.jan-siefken.com/mega-mario-freeware-super-mario-bros-1-clone/)
  - Published: 2008-09-17
  - Modified: 2009-03-03
  - URL: https://www.jan-siefken.com/mega-mario-freeware-super-mario-bros-1-clone/

- [CASIO Digitalkamera HIGH SPEED EXILIM EX-FH20](https://www.jan-siefken.com/casio-digitalkamera-high-speed-exilim-ex-fh20/)
  - Published: 2008-09-17
  - Modified: 2008-09-17
  - URL: https://www.jan-siefken.com/casio-digitalkamera-high-speed-exilim-ex-fh20/

- [Norton Internet Security und Norton AntiVirus](https://www.jan-siefken.com/norton-internet-security-und-norton-antivirus/)
  - Published: 2008-09-17
  - Modified: 2008-09-17
  - URL: https://www.jan-siefken.com/norton-internet-security-und-norton-antivirus/

- [Deutscher Buchpreis 2008](https://www.jan-siefken.com/deutscher-buchpreis-2008/)
  - Published: 2008-09-17
  - Modified: 2008-09-17
  - URL: https://www.jan-siefken.com/deutscher-buchpreis-2008/

- [E-Mail-Marketing – Studie](https://www.jan-siefken.com/e-mail-marketing-studie/)
  - Published: 2008-09-17
  - Modified: 2008-09-17
  - URL: https://www.jan-siefken.com/e-mail-marketing-studie/

- [CeBIT 2009](https://www.jan-siefken.com/cebit-2009/)
  - Published: 2008-09-17
  - Modified: 2008-09-17
  - URL: https://www.jan-siefken.com/cebit-2009/

- [Acer plant Smart-Phone wie iPhone](https://www.jan-siefken.com/acer-plant-smart-phone-wie-iphone/)
  - Published: 2008-09-16
  - Modified: 2008-09-16
  - URL: https://www.jan-siefken.com/acer-plant-smart-phone-wie-iphone/

- [Virenscanner – Antivirus-Software im Test](https://www.jan-siefken.com/virenscanner-antivirus-software-im-test/)
  - Published: 2008-09-16
  - Modified: 2008-09-16
  - URL: https://www.jan-siefken.com/virenscanner-antivirus-software-im-test/

- [Datensicherung – Backup durch Festplatten-Imager](https://www.jan-siefken.com/datensicherung-backup-durch-festplatten-imager/)
  - Published: 2008-09-16
  - Modified: 2008-09-16
  - URL: https://www.jan-siefken.com/datensicherung-backup-durch-festplatten-imager/

- [Intel Sechs-Kern-Prozessor „Dunnington“](https://www.jan-siefken.com/intel-sechs-kern-prozessor-dunnington/)
  - Published: 2008-09-16
  - Modified: 2008-09-16
  - URL: https://www.jan-siefken.com/intel-sechs-kern-prozessor-dunnington/

- [Dizzy Paul Onlinespiel](https://www.jan-siefken.com/dizzy-paul-onlinespiel/)
  - Published: 2008-09-14
  - Modified: 2008-09-14
  - URL: https://www.jan-siefken.com/dizzy-paul-onlinespiel/

- [SD Speicherkarte mit 32 GB](https://www.jan-siefken.com/sd-speicherkarte-mit-32-gb/)
  - Published: 2008-09-14
  - Modified: 2008-09-14
  - URL: https://www.jan-siefken.com/sd-speicherkarte-mit-32-gb/

- [FAR CRY 2 kommt unzensiert](https://www.jan-siefken.com/far-cry-2-kommt-unzensiert/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/far-cry-2-kommt-unzensiert/

- [Youtube – Video Musik als Mp3 runterladen](https://www.jan-siefken.com/youtube-video-musik-als-mp3-runterladen/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/youtube-video-musik-als-mp3-runterladen/

- [Left 4 Dead – neuer Trailer](https://www.jan-siefken.com/left-4-dead-neuer-trailer/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/left-4-dead-neuer-trailer/

- [Zusammenbruch des Internet](https://www.jan-siefken.com/zusammenbruch-des-internet/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/zusammenbruch-des-internet/

- [WD Scorpio Blue – Notebook-Festplatte mit 500 GB](https://www.jan-siefken.com/wd-scorpio-blue-notebook-festplatte-mit-500-gb/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/wd-scorpio-blue-notebook-festplatte-mit-500-gb/

- [„Stretch“-Supercomputer](https://www.jan-siefken.com/stretch-supercomputer/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/stretch-supercomputer/

- [YouTube – Warnung gefaelschte Webseiten](https://www.jan-siefken.com/youtube-warnung-gefaelschte-webseiten/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/youtube-warnung-gefaelschte-webseiten/

- [Social Network MySpace – Portal fuer Smartphones](https://www.jan-siefken.com/social-network-myspace-portal-fuer-smartphones/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/social-network-myspace-portal-fuer-smartphones/

- [Abgeltungssteuer](https://www.jan-siefken.com/abgeltungssteuer/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/abgeltungssteuer/

- [Action Ball 2 – PC Spiel](https://www.jan-siefken.com/action-ball-2-pc-spiel/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/action-ball-2-pc-spiel/

- [Web 2.0 Expo in Berlin](https://www.jan-siefken.com/web-20-expo-in-berlin/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/web-20-expo-in-berlin/

- [IT-Arbeitsmarkt 2008 – weniger Jobs](https://www.jan-siefken.com/it-arbeitsmarkt-2008-weniger-jobs/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/it-arbeitsmarkt-2008-weniger-jobs/

- [iTunes 8 bringt Windows Vista zum Absturz](https://www.jan-siefken.com/itunes-8-bringt-windows-vista-zum-absturz/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/itunes-8-bringt-windows-vista-zum-absturz/

- [Kaffee gegen Herz-Kreislauf-Erkrankungen](https://www.jan-siefken.com/kaffee-gegen-herz-kreislauf-erkrankungen/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/kaffee-gegen-herz-kreislauf-erkrankungen/

- [Topmodel Kate Moss im Interview](https://www.jan-siefken.com/topmodel-kate-moss-im-interview/)
  - Published: 2008-09-13
  - Modified: 2008-09-13
  - URL: https://www.jan-siefken.com/topmodel-kate-moss-im-interview/

- [Microsoft – Neue Markenkampagne fuer Windows](https://www.jan-siefken.com/microsoft-neue-markenkampagne-fuer-windows/)
  - Published: 2008-09-05
  - Modified: 2008-09-05
  - URL: https://www.jan-siefken.com/microsoft-neue-markenkampagne-fuer-windows/

- [Xbox 360 – Spielekonsole wird billiger](https://www.jan-siefken.com/xbox-360-spielekonsole-wird-billiger/)
  - Published: 2008-09-05
  - Modified: 2008-09-05
  - URL: https://www.jan-siefken.com/xbox-360-spielekonsole-wird-billiger/

- [„Killerspiele“ Verbot – Gamer prostestieren gegen Bayern](https://www.jan-siefken.com/killerspiele-verbot-gamer-prostestieren-gegen-bayern/)
  - Published: 2008-09-05
  - Modified: 2008-09-05
  - URL: https://www.jan-siefken.com/killerspiele-verbot-gamer-prostestieren-gegen-bayern/

- [Microsoft schliesst Sicherheitsluecken](https://www.jan-siefken.com/microsoft-schliesst-sicherheitsluecken/)
  - Published: 2008-09-05
  - Modified: 2008-09-05
  - URL: https://www.jan-siefken.com/microsoft-schliesst-sicherheitsluecken/

- [Studie: Die Aengste der Deutschen 2008](https://www.jan-siefken.com/studie-die-aengste-der-deutschen-2008/)
  - Published: 2008-09-05
  - Modified: 2008-09-05
  - URL: https://www.jan-siefken.com/studie-die-aengste-der-deutschen-2008/

- [Oktoberfest Bildschirmschoner](https://www.jan-siefken.com/oktoberfest-bildschirmschoner/)
  - Published: 2008-08-29
  - Modified: 2008-08-29
  - URL: https://www.jan-siefken.com/oktoberfest-bildschirmschoner/

- [Olympia 2008 – Die Olympischen Spiele online](https://www.jan-siefken.com/olympia-2008-die-olympischen-spiele-online/)
  - Published: 2008-08-21
  - Modified: 2008-08-21
  - URL: https://www.jan-siefken.com/olympia-2008-die-olympischen-spiele-online/

- [Asus Eee PC – guenstigere Preise](https://www.jan-siefken.com/asus-eee-pc-guenstigere-preise/)
  - Published: 2008-08-13
  - Modified: 2008-08-13
  - URL: https://www.jan-siefken.com/asus-eee-pc-guenstigere-preise/

- [Neues CeBIT Thema: „Internet – Mobile Solutions“](https://www.jan-siefken.com/neues-cebit-thema-internet-mobile-solutions/)
  - Published: 2008-08-13
  - Modified: 2008-08-13
  - URL: https://www.jan-siefken.com/neues-cebit-thema-internet-mobile-solutions/

- [Ben Kingsley zieht es nach Bollywood](https://www.jan-siefken.com/ben-kingsley-zieht-es-nach-bollywood/)
  - Published: 2008-08-13
  - Modified: 2008-08-13
  - URL: https://www.jan-siefken.com/ben-kingsley-zieht-es-nach-bollywood/

- [BILD Online zeigt Bundesliga-News mit Video im Internet](https://www.jan-siefken.com/bild-online-zeigt-bundesliga-news-mit-video-im-internet/)
  - Published: 2008-08-13
  - Modified: 2008-08-13
  - URL: https://www.jan-siefken.com/bild-online-zeigt-bundesliga-news-mit-video-im-internet/

- [Krimi – Der Frauenmoerder](https://www.jan-siefken.com/krimi-der-frauenmoerder/)
  - Published: 2008-08-13
  - Modified: 2008-08-13
  - URL: https://www.jan-siefken.com/krimi-der-frauenmoerder/

- [Denkspiele europaweit im Trend](https://www.jan-siefken.com/denkspiele-europaweit-im-trend/)
  - Published: 2008-08-08
  - Modified: 2008-08-08
  - URL: https://www.jan-siefken.com/denkspiele-europaweit-im-trend/

- [Olympia im Fernsehen](https://www.jan-siefken.com/olympia-im-fernsehen/)
  - Published: 2008-08-08
  - Modified: 2008-08-08
  - URL: https://www.jan-siefken.com/olympia-im-fernsehen/

- [Olympia live auf dem Handy](https://www.jan-siefken.com/olympia-live-auf-dem-handy/)
  - Published: 2008-08-08
  - Modified: 2008-08-08
  - URL: https://www.jan-siefken.com/olympia-live-auf-dem-handy/

- [Buch – Einfuehrung in Joomla](https://www.jan-siefken.com/buch-einfuehrung-in-joomla/)
  - Published: 2008-08-06
  - Modified: 2008-08-06
  - URL: https://www.jan-siefken.com/buch-einfuehrung-in-joomla/

- [Freeware contra Kaufsoftware](https://www.jan-siefken.com/freeware-contra-kaufsoftware/)
  - Published: 2008-08-06
  - Modified: 2008-08-06
  - URL: https://www.jan-siefken.com/freeware-contra-kaufsoftware/

- [Olympische Spiele 2008 – Sicherheit im Internet](https://www.jan-siefken.com/olympische-spiele-2008-sicherheit-im-internet/)
  - Published: 2008-08-06
  - Modified: 2008-08-06
  - URL: https://www.jan-siefken.com/olympische-spiele-2008-sicherheit-im-internet/

- [Urteil gegen GEZ-Gebuehren auf Computer](https://www.jan-siefken.com/urteil-gegen-gez-gebuehren-auf-computer/)
  - Published: 2008-07-30
  - Modified: 2008-07-30
  - URL: https://www.jan-siefken.com/urteil-gegen-gez-gebuehren-auf-computer/

- [Galaxy on Fire 2 – 3D-Weltraum-Shooter fuers Handy](https://www.jan-siefken.com/galaxy-on-fire-2-3d-weltraum-shooter-fuers-handy/)
  - Published: 2008-07-30
  - Modified: 2008-07-30
  - URL: https://www.jan-siefken.com/galaxy-on-fire-2-3d-weltraum-shooter-fuers-handy/

- [SPD fordert totales Rauchverbot](https://www.jan-siefken.com/spd-fordert-totales-rauchverbot/)
  - Published: 2008-07-30
  - Modified: 2008-07-30
  - URL: https://www.jan-siefken.com/spd-fordert-totales-rauchverbot/

- [Fussball-EM 2008 – Effekt auf Deutschlands Werbelandschaft](https://www.jan-siefken.com/fussball-em-2008-effekt-auf-deutschlands-werbelandschaft/)
  - Published: 2008-07-30
  - Modified: 2008-07-30
  - URL: https://www.jan-siefken.com/fussball-em-2008-effekt-auf-deutschlands-werbelandschaft/

- [mobile Audio-, Foto- und Text-Blogging-Anwendung](https://www.jan-siefken.com/mobile-audio-foto-und-text-blogging-anwendung/)
  - Published: 2008-07-30
  - Modified: 2008-07-30
  - URL: https://www.jan-siefken.com/mobile-audio-foto-und-text-blogging-anwendung/

- [Goetz George – Schimanski wird 70 – Video](https://www.jan-siefken.com/goetz-george-schimanski-wird-70-video/)
  - Published: 2008-07-23
  - Modified: 2008-07-23
  - URL: https://www.jan-siefken.com/goetz-george-schimanski-wird-70-video/

- [Computerviren Trojaner Virus Top10 – Juni 2008](https://www.jan-siefken.com/computerviren-trojaner-virus-top10-juni-2008/)
  - Published: 2008-07-14
  - Modified: 2008-07-14
  - URL: https://www.jan-siefken.com/computerviren-trojaner-virus-top10-juni-2008/

- [Neues Job- und Karriere-Portal](https://www.jan-siefken.com/neues-job-und-karriere-portal/)
  - Published: 2008-07-14
  - Modified: 2008-07-14
  - URL: https://www.jan-siefken.com/neues-job-und-karriere-portal/

- [Wie gefaehrdet sind Weltkultur- und Naturwunder?](https://www.jan-siefken.com/wie-gefaehrdet-sind-weltkultur-und-naturwunder/)
  - Published: 2008-07-12
  - Modified: 2008-07-12
  - URL: https://www.jan-siefken.com/wie-gefaehrdet-sind-weltkultur-und-naturwunder/

- [Medion Akoya Mini E1210 – Groesserer Akku](https://www.jan-siefken.com/medion-akoya-mini-e1210-groesserer-akku/)
  - Published: 2008-07-04
  - Modified: 2008-07-04
  - URL: https://www.jan-siefken.com/medion-akoya-mini-e1210-groesserer-akku/

- [Welche Rolle spielt das Internet im Handel?](https://www.jan-siefken.com/welche-rolle-spielt-das-internet-im-handel/)
  - Published: 2008-07-04
  - Modified: 2008-07-04
  - URL: https://www.jan-siefken.com/welche-rolle-spielt-das-internet-im-handel/

- [DSL-Alternative: VPN-Router](https://www.jan-siefken.com/dsl-alternative-vpn-router/)
  - Published: 2008-07-04
  - Modified: 2008-07-04
  - URL: https://www.jan-siefken.com/dsl-alternative-vpn-router/

- [Kauf von Billig-PCs unter 200 Euro](https://www.jan-siefken.com/kauf-von-billig-pcs-unter-200-euro/)
  - Published: 2008-07-04
  - Modified: 2008-07-04
  - URL: https://www.jan-siefken.com/kauf-von-billig-pcs-unter-200-euro/

- [Software warnt vor unsicheren Web-Shops](https://www.jan-siefken.com/software-warnt-vor-unsicheren-web-shops/)
  - Published: 2008-07-04
  - Modified: 2008-07-04
  - URL: https://www.jan-siefken.com/software-warnt-vor-unsicheren-web-shops/

- [DSL-Alternative – Internet ueber Fernsehkabel](https://www.jan-siefken.com/dsl-alternative-internet-ueber-fernsehkabel/)
  - Published: 2008-06-24
  - Modified: 2008-06-24
  - URL: https://www.jan-siefken.com/dsl-alternative-internet-ueber-fernsehkabel/

- [Buch – Webseiten professionell erstellen](https://www.jan-siefken.com/buch-webseiten-professionell-erstellen/)
  - Published: 2008-06-24
  - Modified: 2008-06-24
  - URL: https://www.jan-siefken.com/buch-webseiten-professionell-erstellen/

- [EM 2008 – Video: Szenen nach Spiel Deutschland – Portugal](https://www.jan-siefken.com/em-2008-video-szenen-nach-spiel-deutschland-portugal/)
  - Published: 2008-06-20
  - Modified: 2008-06-20
  - URL: https://www.jan-siefken.com/em-2008-video-szenen-nach-spiel-deutschland-portugal/

- [Firefox 3 – Download Rekord und erste Sicherheitsluecke](https://www.jan-siefken.com/firefox-3-download-rekord-und-erste-sicherheitsluecke/)
  - Published: 2008-06-19
  - Modified: 2008-06-19
  - URL: https://www.jan-siefken.com/firefox-3-download-rekord-und-erste-sicherheitsluecke/

- [Social Shopping – Zukunft des E-Commerce?](https://www.jan-siefken.com/social-shopping-zukunft-des-e-commerce/)
  - Published: 2008-06-18
  - Modified: 2008-06-18
  - URL: https://www.jan-siefken.com/social-shopping-zukunft-des-e-commerce/

- [MySpace gelingt erneut Schlag gegen Spammer](https://www.jan-siefken.com/myspace-gelingt-erneut-schlag-gegen-spammer/)
  - Published: 2008-06-18
  - Modified: 2008-06-18
  - URL: https://www.jan-siefken.com/myspace-gelingt-erneut-schlag-gegen-spammer/

- [Crysis und Quake 4 auf dem Asus Eee PC](https://www.jan-siefken.com/crysis-und-quake-4-auf-dem-asus-eee-pc/)
  - Published: 2008-06-18
  - Modified: 2008-06-18
  - URL: https://www.jan-siefken.com/crysis-und-quake-4-auf-dem-asus-eee-pc/

- [Studie: Mobiles Internet auf dem Handy](https://www.jan-siefken.com/studie-mobiles-internet-auf-dem-handy/)
  - Published: 2008-06-12
  - Modified: 2008-06-12
  - URL: https://www.jan-siefken.com/studie-mobiles-internet-auf-dem-handy/

- [Windows Defragmentierung – Festplatte defragmentieren](https://www.jan-siefken.com/windows-defragmentierung-festplatte-defragmentieren/)
  - Published: 2008-06-12
  - Modified: 2008-06-12
  - URL: https://www.jan-siefken.com/windows-defragmentierung-festplatte-defragmentieren/

- [Legale Tauschboersen im Internet](https://www.jan-siefken.com/legale-tauschboersen-im-internet/)
  - Published: 2008-06-12
  - Modified: 2008-06-12
  - URL: https://www.jan-siefken.com/legale-tauschboersen-im-internet/

- [Sicherheitsluecken in Online-Shops](https://www.jan-siefken.com/sicherheitsluecken-in-online-shops/)
  - Published: 2008-06-09
  - Modified: 2008-06-09
  - URL: https://www.jan-siefken.com/sicherheitsluecken-in-online-shops/

- [Umfrage: EM 2008 – Sieg fuer Deutschland moeglich](https://www.jan-siefken.com/umfrage-em-2008-sieg-fuer-deutschland-moeglich/)
  - Published: 2008-06-09
  - Modified: 2008-06-09
  - URL: https://www.jan-siefken.com/umfrage-em-2008-sieg-fuer-deutschland-moeglich/

- [Fussball EM-Special rund um die EURO 2008](https://www.jan-siefken.com/fussball-em-special-rund-um-die-euro-2008/)
  - Published: 2008-06-09
  - Modified: 2008-06-09
  - URL: https://www.jan-siefken.com/fussball-em-special-rund-um-die-euro-2008/

- [Studie – Wie zufrieden sind Handy-Nutzer?](https://www.jan-siefken.com/studie-wie-zufrieden-sind-handy-nutzer/)
  - Published: 2008-06-09
  - Modified: 2008-06-09
  - URL: https://www.jan-siefken.com/studie-wie-zufrieden-sind-handy-nutzer/

- [Madonna Video „Give it 2 Me“ bei Yahoo](https://www.jan-siefken.com/madonna-video-give-it-2-me-bei-yahoo/)
  - Published: 2008-06-04
  - Modified: 2008-06-04
  - URL: https://www.jan-siefken.com/madonna-video-give-it-2-me-bei-yahoo/

- [Interact Congress 2008 in Berlin](https://www.jan-siefken.com/interact-congress-2008-in-berlin/)
  - Published: 2008-06-04
  - Modified: 2008-06-04
  - URL: https://www.jan-siefken.com/interact-congress-2008-in-berlin/

- [Events fuer Marketingaktionen nutzen](https://www.jan-siefken.com/events-fuer-marketingaktionen-nutzen/)
  - Published: 2008-06-04
  - Modified: 2008-06-04
  - URL: https://www.jan-siefken.com/events-fuer-marketingaktionen-nutzen/

- [Computervirus – neuer Windows-Wurm](https://www.jan-siefken.com/computervirus-neuer-windows-wurm/)
  - Published: 2008-06-03
  - Modified: 2008-06-03
  - URL: https://www.jan-siefken.com/computervirus-neuer-windows-wurm/

- [2.5-Zoll Festplatte von Western Digital](https://www.jan-siefken.com/25-zoll-festplatte-von-western-digital/)
  - Published: 2008-06-03
  - Modified: 2008-06-03
  - URL: https://www.jan-siefken.com/25-zoll-festplatte-von-western-digital/

- [Fachkraeftemangel bei Unternehmen](https://www.jan-siefken.com/fachkraeftemangel-bei-unternehmen/)
  - Published: 2008-06-03
  - Modified: 2008-06-03
  - URL: https://www.jan-siefken.com/fachkraeftemangel-bei-unternehmen/

- [Asus Eee PC 900](https://www.jan-siefken.com/asus-eee-pc-900/)
  - Published: 2008-06-03
  - Modified: 2008-06-03
  - URL: https://www.jan-siefken.com/asus-eee-pc-900/

- [Jobsuche im Internet](https://www.jan-siefken.com/jobsuche-im-internet/)
  - Published: 2008-06-03
  - Modified: 2008-06-03
  - URL: https://www.jan-siefken.com/jobsuche-im-internet/

- [Handynutzung zur Fussball-EM 2008](https://www.jan-siefken.com/handynutzung-zur-fussball-em-2008/)
  - Published: 2008-06-03
  - Modified: 2008-06-03
  - URL: https://www.jan-siefken.com/handynutzung-zur-fussball-em-2008/

- [Abgeltungsteuer – IT-Herausforderungen fuer Banken](https://www.jan-siefken.com/abgeltungsteuer-it-herausforderungen-fuer-banken/)
  - Published: 2008-06-03
  - Modified: 2008-06-03
  - URL: https://www.jan-siefken.com/abgeltungsteuer-it-herausforderungen-fuer-banken/

- [Fussball-EM Tippspiel](https://www.jan-siefken.com/fussball-em-tippspiel/)
  - Published: 2008-06-03
  - Modified: 2008-06-03
  - URL: https://www.jan-siefken.com/fussball-em-tippspiel/

- [Verbot Schnurlostelefone nach Standards CT1 und CT2](https://www.jan-siefken.com/verbot-schnurlostelefone-nach-standards-ct1-und-ct2/)
  - Published: 2008-05-30
  - Modified: 2008-05-30
  - URL: https://www.jan-siefken.com/verbot-schnurlostelefone-nach-standards-ct1-und-ct2/

- [TFT-Monitore im Test](https://www.jan-siefken.com/tft-monitore-im-test/)
  - Published: 2008-05-30
  - Modified: 2008-05-30
  - URL: https://www.jan-siefken.com/tft-monitore-im-test/

- [Spam E-Mails im Vorfeld vermeiden](https://www.jan-siefken.com/spam-e-mails-im-vorfeld-vermeiden/)
  - Published: 2008-05-30
  - Modified: 2008-05-30
  - URL: https://www.jan-siefken.com/spam-e-mails-im-vorfeld-vermeiden/

- [Internet-PC statt CD-Spieler bei Jugendlichen](https://www.jan-siefken.com/internet-pc-statt-cd-spieler-bei-jugendlichen/)
  - Published: 2008-05-30
  - Modified: 2008-05-30
  - URL: https://www.jan-siefken.com/internet-pc-statt-cd-spieler-bei-jugendlichen/

- [Firefox 3 – Der neue Browser von Mozilla](https://www.jan-siefken.com/firefox-3-der-neue-browser-von-mozilla/)
  - Published: 2008-05-30
  - Modified: 2008-05-30
  - URL: https://www.jan-siefken.com/firefox-3-der-neue-browser-von-mozilla/

- [Die Telekom im Zwielicht](https://www.jan-siefken.com/die-telekom-im-zwielicht/)
  - Published: 2008-05-30
  - Modified: 2008-05-30
  - URL: https://www.jan-siefken.com/die-telekom-im-zwielicht/

- [Netlog beteiligt sich an OpenSocial-Initiative](https://www.jan-siefken.com/netlog-beteiligt-sich-an-opensocial-initiative/)
  - Published: 2008-05-30
  - Modified: 2008-05-30
  - URL: https://www.jan-siefken.com/netlog-beteiligt-sich-an-opensocial-initiative/

- [Telekommunikation – stagnierendes Festnetzgeschaeft](https://www.jan-siefken.com/telekommunikation-stagnierendes-festnetzgeschaeft/)
  - Published: 2008-05-30
  - Modified: 2008-05-30
  - URL: https://www.jan-siefken.com/telekommunikation-stagnierendes-festnetzgeschaeft/

- [MyTube Internet Recorder](https://www.jan-siefken.com/mytube-internet-recorder/)
  - Published: 2008-05-28
  - Modified: 2008-05-28
  - URL: https://www.jan-siefken.com/mytube-internet-recorder/

- [Social Networking haelt Einzug in Unternehmen](https://www.jan-siefken.com/social-networking-haelt-einzug-in-unternehmen/)
  - Published: 2008-05-28
  - Modified: 2008-05-28
  - URL: https://www.jan-siefken.com/social-networking-haelt-einzug-in-unternehmen/

- [Siegfried Lenz – Schweigeminute](https://www.jan-siefken.com/siegfried-lenz-schweigeminute/)
  - Published: 2008-05-28
  - Modified: 2008-05-28
  - URL: https://www.jan-siefken.com/siegfried-lenz-schweigeminute/

- [RSS Nutzung waechst rasant](https://www.jan-siefken.com/rss-nutzung-waechst-rasant/)
  - Published: 2008-05-28
  - Modified: 2008-05-28
  - URL: https://www.jan-siefken.com/rss-nutzung-waechst-rasant/

- [Millionen Gewinn bei Schlag den Raab](https://www.jan-siefken.com/millionen-gewinn-bei-schlag-den-raab/)
  - Published: 2008-05-28
  - Modified: 2008-05-28
  - URL: https://www.jan-siefken.com/millionen-gewinn-bei-schlag-den-raab/

- [Fussball EM 2008: Wenig Vertrauen in EM-Sieg der Deutschen](https://www.jan-siefken.com/fussball-em-2008-wenig-vertrauen-in-em-sieg-der-deutschen/)
  - Published: 2008-05-23
  - Modified: 2008-05-23
  - URL: https://www.jan-siefken.com/fussball-em-2008-wenig-vertrauen-in-em-sieg-der-deutschen/

- [Neuer Computervirus – Virus als Vertrag getarnt](https://www.jan-siefken.com/neuer-computervirus-virus-als-vertrag-getarnt/)
  - Published: 2008-05-23
  - Modified: 2008-05-23
  - URL: https://www.jan-siefken.com/neuer-computervirus-virus-als-vertrag-getarnt/

- [Software zur Datensicherung und Datenrettung](https://www.jan-siefken.com/software-zur-datensicherung-und-datenrettung/)
  - Published: 2008-05-23
  - Modified: 2008-05-23
  - URL: https://www.jan-siefken.com/software-zur-datensicherung-und-datenrettung/

- [Microsoft Office 2007 – Service Pack 2](https://www.jan-siefken.com/microsoft-office-2007-service-pack-2/)
  - Published: 2008-05-23
  - Modified: 2008-05-23
  - URL: https://www.jan-siefken.com/microsoft-office-2007-service-pack-2/

- [Antivirensoftware Kaspersky Security Suite kostenlos](https://www.jan-siefken.com/antivirensoftware-kaspersky-security-suite-kostenlos/)
  - Published: 2008-05-23
  - Modified: 2008-05-23
  - URL: https://www.jan-siefken.com/antivirensoftware-kaspersky-security-suite-kostenlos/

- [Jobboerse bei heise – Karriere Veranstaltungen Jobsuche](https://www.jan-siefken.com/jobboerse-bei-heise-karriere-veranstaltungen-jobsuche/)
  - Published: 2008-05-23
  - Modified: 2008-05-23
  - URL: https://www.jan-siefken.com/jobboerse-bei-heise-karriere-veranstaltungen-jobsuche/

- [Adware tarnt sich als Windows Security Center](https://www.jan-siefken.com/adware-tarnt-sich-als-windows-security-center/)
  - Published: 2008-05-23
  - Modified: 2008-05-23
  - URL: https://www.jan-siefken.com/adware-tarnt-sich-als-windows-security-center/

- [BlackBerry-Smartphone als Diktiergeraet](https://www.jan-siefken.com/blackberry-smartphone-als-diktiergeraet/)
  - Published: 2008-05-23
  - Modified: 2008-05-23
  - URL: https://www.jan-siefken.com/blackberry-smartphone-als-diktiergeraet/

- [Studie: Frauen und Internetnutzung](https://www.jan-siefken.com/studie-frauen-und-internetnutzung/)
  - Published: 2008-05-22
  - Modified: 2008-05-22
  - URL: https://www.jan-siefken.com/studie-frauen-und-internetnutzung/

- [Web-TV Sendung Libri-AutorenBlicke](https://www.jan-siefken.com/web-tv-sendung-libri-autorenblicke/)
  - Published: 2008-05-22
  - Modified: 2008-05-22
  - URL: https://www.jan-siefken.com/web-tv-sendung-libri-autorenblicke/

- [Das Rauchen aufgeben am Weltnichtrauchertag](https://www.jan-siefken.com/das-rauchen-aufgeben-am-weltnichtrauchertag/)
  - Published: 2008-05-22
  - Modified: 2008-05-22
  - URL: https://www.jan-siefken.com/das-rauchen-aufgeben-am-weltnichtrauchertag/

- [Steve Ballmer von Microsoft mit Eiern beworfen – Video](https://www.jan-siefken.com/steve-ballmer-von-microsoft-mit-eiern-beworfen-video/)
  - Published: 2008-05-21
  - Modified: 2008-05-21
  - URL: https://www.jan-siefken.com/steve-ballmer-von-microsoft-mit-eiern-beworfen-video/

- [iPass bietet ueber 100.000 WLAN-Hotspot-Standorte](https://www.jan-siefken.com/ipass-bietet-ueber-100000-wlan-hotspot-standorte/)
  - Published: 2008-05-21
  - Modified: 2008-05-21
  - URL: https://www.jan-siefken.com/ipass-bietet-ueber-100000-wlan-hotspot-standorte/

- [Fussball EM 2008 live im ZDF](https://www.jan-siefken.com/fussball-em-2008-live-im-zdf/)
  - Published: 2008-05-21
  - Modified: 2008-05-21
  - URL: https://www.jan-siefken.com/fussball-em-2008-live-im-zdf/

- [Dienstleister-Report 2008](https://www.jan-siefken.com/dienstleister-report-2008/)
  - Published: 2008-05-20
  - Modified: 2008-05-20
  - URL: https://www.jan-siefken.com/dienstleister-report-2008/

- [Viele Deutsche haetten lieber einen anderen Beruf gewaehlt](https://www.jan-siefken.com/viele-deutsche-haetten-lieber-einen-anderen-beruf-gewaehlt/)
  - Published: 2008-05-20
  - Modified: 2008-05-20
  - URL: https://www.jan-siefken.com/viele-deutsche-haetten-lieber-einen-anderen-beruf-gewaehlt/

- [EMI und Gema – Vertonung von privaten Videos](https://www.jan-siefken.com/emi-und-gema-vertonung-von-privaten-videos/)
  - Published: 2008-05-20
  - Modified: 2008-05-20
  - URL: https://www.jan-siefken.com/emi-und-gema-vertonung-von-privaten-videos/

- [Internet – Kunden oft unzufrieden mit Internetprovider](https://www.jan-siefken.com/internet-kunden-oft-unzufrieden-mit-internetprovider/)
  - Published: 2008-05-20
  - Modified: 2008-05-20
  - URL: https://www.jan-siefken.com/internet-kunden-oft-unzufrieden-mit-internetprovider/

- [Gestaltung von Online-Stellenanzeigen](https://www.jan-siefken.com/gestaltung-von-online-stellenanzeigen/)
  - Published: 2008-05-20
  - Modified: 2008-05-20
  - URL: https://www.jan-siefken.com/gestaltung-von-online-stellenanzeigen/

- [Kinder bleiben im Web 2.0 lieber unter sich](https://www.jan-siefken.com/kinder-bleiben-im-web-20-lieber-unter-sich/)
  - Published: 2008-05-20
  - Modified: 2008-05-20
  - URL: https://www.jan-siefken.com/kinder-bleiben-im-web-20-lieber-unter-sich/

- [Leitfaden Heise Online-Recht](https://www.jan-siefken.com/leitfaden-heise-online-recht/)
  - Published: 2008-05-20
  - Modified: 2008-05-20
  - URL: https://www.jan-siefken.com/leitfaden-heise-online-recht/

- [o2 Germany – Viele Kunden koennen nicht mehr telefonieren](https://www.jan-siefken.com/o2-germany-viele-kunden-koennen-nicht-mehr-telefonieren/)
  - Published: 2008-05-20
  - Modified: 2008-05-20
  - URL: https://www.jan-siefken.com/o2-germany-viele-kunden-koennen-nicht-mehr-telefonieren/

- [Video – Beamer-Lampe schonen](https://www.jan-siefken.com/video-beamer-lampe-schonen/)
  - Published: 2008-05-20
  - Modified: 2008-05-20
  - URL: https://www.jan-siefken.com/video-beamer-lampe-schonen/

- [Buch als Medium nicht bedroht](https://www.jan-siefken.com/buch-als-medium-nicht-bedroht/)
  - Published: 2008-05-20
  - Modified: 2008-05-20
  - URL: https://www.jan-siefken.com/buch-als-medium-nicht-bedroht/

- [Microsoft Malware Protection – Sicherheitsluecke](https://www.jan-siefken.com/microsoft-malware-protection-sicherheitsluecke/)
  - Published: 2008-05-19
  - Modified: 2008-05-19
  - URL: https://www.jan-siefken.com/microsoft-malware-protection-sicherheitsluecke/

- [America.com – Internetdomain wird versteigert](https://www.jan-siefken.com/americacom-internetdomain-wird-versteigert/)
  - Published: 2008-05-19
  - Modified: 2008-05-19
  - URL: https://www.jan-siefken.com/americacom-internetdomain-wird-versteigert/

- [Frauen und Marken – KommunikationsAnalyse](https://www.jan-siefken.com/frauen-und-marken-kommunikationsanalyse/)
  - Published: 2008-05-19
  - Modified: 2008-05-19
  - URL: https://www.jan-siefken.com/frauen-und-marken-kommunikationsanalyse/

- [Suchmaschine Yahoo – Entwickler-Tool „SearchMonkey“](https://www.jan-siefken.com/suchmaschine-yahoo-entwickler-tool-searchmonkey/)
  - Published: 2008-05-19
  - Modified: 2008-05-19
  - URL: https://www.jan-siefken.com/suchmaschine-yahoo-entwickler-tool-searchmonkey/

- [Qype fuer Apple iPhone](https://www.jan-siefken.com/qype-fuer-apple-iphone/)
  - Published: 2008-05-19
  - Modified: 2008-05-19
  - URL: https://www.jan-siefken.com/qype-fuer-apple-iphone/

- [Kurt Beck bezeichnet Treffen mit Dalai Lama als „Scheiss“](https://www.jan-siefken.com/kurt-beck-bezeichnet-treffen-mit-dalai-lama-als-scheiss/)
  - Published: 2008-05-19
  - Modified: 2008-05-19
  - URL: https://www.jan-siefken.com/kurt-beck-bezeichnet-treffen-mit-dalai-lama-als-scheiss/

- [Dank Web 2.0 – Nogger Choc von Langnese ist zurueck!](https://www.jan-siefken.com/dank-web-20-nogger-choc-von-langnese-ist-zurueck/)
  - Published: 2008-05-16
  - Modified: 2008-05-16
  - URL: https://www.jan-siefken.com/dank-web-20-nogger-choc-von-langnese-ist-zurueck/

- [Konsumenten-Empfehlungen bei Kaufentscheidungen](https://www.jan-siefken.com/konsumenten-empfehlungen-bei-kaufentscheidungen/)
  - Published: 2008-05-16
  - Modified: 2008-05-16
  - URL: https://www.jan-siefken.com/konsumenten-empfehlungen-bei-kaufentscheidungen/

- [Studie: Bier ist gesund](https://www.jan-siefken.com/studie-bier-ist-gesund/)
  - Published: 2008-05-16
  - Modified: 2008-05-16
  - URL: https://www.jan-siefken.com/studie-bier-ist-gesund/

- [Trend Micro Malware Report](https://www.jan-siefken.com/trend-micro-malware-report/)
  - Published: 2008-05-15
  - Modified: 2008-05-15
  - URL: https://www.jan-siefken.com/trend-micro-malware-report/

- [StudiVZ will gegen MatheVZ klagen](https://www.jan-siefken.com/studivz-will-gegen-mathevz-klagen/)
  - Published: 2008-05-15
  - Modified: 2008-05-15
  - URL: https://www.jan-siefken.com/studivz-will-gegen-mathevz-klagen/

- [Legend Online – Browsergame](https://www.jan-siefken.com/legend-online-browsergame/)
  - Published: 2008-05-15
  - Modified: 2008-05-15
  - URL: https://www.jan-siefken.com/legend-online-browsergame/

- [Web 2.0 – The Machine is Us/ing Us](https://www.jan-siefken.com/web-20-the-machine-is-using-us/)
  - Published: 2008-05-15
  - Modified: 2008-05-15
  - URL: https://www.jan-siefken.com/web-20-the-machine-is-using-us/

- [Interaktive Werbung bei Web 2.0-Unternehmen](https://www.jan-siefken.com/interaktive-werbung-bei-web-20-unternehmen/)
  - Published: 2008-05-15
  - Modified: 2008-05-15
  - URL: https://www.jan-siefken.com/interaktive-werbung-bei-web-20-unternehmen/

- [IT-Systeme stets im Blick](https://www.jan-siefken.com/it-systeme-stets-im-blick/)
  - Published: 2008-05-15
  - Modified: 2008-05-15
  - URL: https://www.jan-siefken.com/it-systeme-stets-im-blick/

- [VHS-Videos am Computer digitalisieren](https://www.jan-siefken.com/vhs-videos-am-computer-digitalisieren/)
  - Published: 2008-05-15
  - Modified: 2008-05-15
  - URL: https://www.jan-siefken.com/vhs-videos-am-computer-digitalisieren/

- [Adobe Flash Player 10 Beta](https://www.jan-siefken.com/adobe-flash-player-10-beta/)
  - Published: 2008-05-15
  - Modified: 2008-05-15
  - URL: https://www.jan-siefken.com/adobe-flash-player-10-beta/

- [Neue Telekom-Tarife](https://www.jan-siefken.com/neue-telekom-tarife/)
  - Published: 2008-05-15
  - Modified: 2008-05-15
  - URL: https://www.jan-siefken.com/neue-telekom-tarife/

- [Call of Duty 5 – neuer Ego-Shooter geplant](https://www.jan-siefken.com/call-of-duty-5-neuer-ego-shooter-geplant/)
  - Published: 2008-05-15
  - Modified: 2008-05-15
  - URL: https://www.jan-siefken.com/call-of-duty-5-neuer-ego-shooter-geplant/

- [Asus Eee-PC steigert Absatz auf PC-Markt](https://www.jan-siefken.com/asus-eee-pc-steigert-absatz-auf-pc-markt/)
  - Published: 2008-05-15
  - Modified: 2008-05-15
  - URL: https://www.jan-siefken.com/asus-eee-pc-steigert-absatz-auf-pc-markt/

- [Neue Version von DOFUS – dem Online-Rollenspiel](https://www.jan-siefken.com/neue-version-von-dofus-dem-online-rollenspiel/)
  - Published: 2008-05-15
  - Modified: 2008-05-15
  - URL: https://www.jan-siefken.com/neue-version-von-dofus-dem-online-rollenspiel/

- [Hancock Kino Trailer mit Will Smith](https://www.jan-siefken.com/hancock-kino-trailer-mit-will-smith/)
  - Published: 2008-05-14
  - Modified: 2008-05-14
  - URL: https://www.jan-siefken.com/hancock-kino-trailer-mit-will-smith/

- [Six Apart – mobiles Blogging auf BlackBerry Smartphones](https://www.jan-siefken.com/six-apart-mobiles-blogging-auf-blackberry-smartphones/)
  - Published: 2008-05-14
  - Modified: 2008-05-14
  - URL: https://www.jan-siefken.com/six-apart-mobiles-blogging-auf-blackberry-smartphones/

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