IATE: A really good translator.
Frasi.net: A good German=>Italian translator.
MarineTraffic.com: Real-time map of almost all ships in the world.
Zurich ATC visual: Real-time map of air traffic over Zürich-Kloten/Switzerland/LSZH airport.
Swiss trains: Real-time feeds of swiss trains position.
AuroraWatch alerts: Get notified immediately by email whenever major solar storms occur.
Allmetsat: A lot of weather satellite images.
JACDEC: Jet Airliner Crash Data Evaluation Centre.
Time and date: Local time of different places around our planet.
High-Def Digest: Reviews of the video quality of Blu-Ray releases.
Shoutcast radios: Radios that can be recorded with song title and interpreter.
themoviedb.org: A great site where to find informations about movies, posters, etc... .
Slimdevices: Squeezecenter software changelog.
Espérance ACTI: Aid and cooperation from Ticino to Indochina.