Last update April 28, 2009
I don't really rate sites, but here are some highlights of general interest in Swiss aviation cyberspace.
The parent organization of Swiss civil aviation is Aerosuisse (German). The major aviation industry network is Cluster Aviatik (German). The parent organization of Swiss light aviation and air sports is the Aero-Club of Switzerland (German/French). There you can find an event schedule. The Swiss national aviation authority, the Federal Office for Civil Aviation (English/German/French/Italian), is also online. There you can also find the official Swiss aircraft register. You also might want to check out Swiss ATS Skyguide (English/German/French) and the Swiss Aircraft Accident Investigation Bureau (German/French).
luftfahrt.ch (German) gives a lot of information about Swiss airlines, air force, museums, manufacturers & more.
Christoph Kugler's Unofficial Site of the Swiss Air Force (English) is the best site about Swiss Air Force.
Helicopters in Switzerland and Liechtenstein are best described at Markus Herzig's Swiss Helicopters (English). The Swiss Ballooning Site (English/German) by Funk's Ballonfahrten provides an overview of Ballooning in Switzerland.
www.flightforum.ch (German) is not only a forum for MS Flight Simulator fans, it also includes discussion forums for other aviation issues.
A site about a historical landmark in Swiss civil aviation is Swissair Story (German). Speaking about history: a very rare airworthy plane is the Breitling Super Constellation by the Swiss Super Constellation Flyers Association (English). Another extraordinary vintage fleet is operated by the Jet Alpine Fighters (English/French/German).
No comprehensive weather information site is available anymore. allmetsat (English) gives a good METAR/TAF overview. The best site for webcam pictures is Westwind.ch (English).
If you want to fly to aerodromes which are not published in the Swiss VFR Manual (AIP Vol. 2), you can get maps of Kägiswil (German), Mollis (German), Raron (German), Hausen am Albis (German) or Zweisimmen (German).
Samedan Airport (English/German/French/Italian) is the highest public aerodrome in Europe. Les Eplatures (English/French/German) is the highest IFR aerodrome in Europe.
Air Traffic ZHAW (English/German/French/Italian) is a great real-time trafic map for the traffic around Zurich. LiveATC.net (English) also provides several live streams and archives for Zurich & Geneva.
An overview about Alpine glacier flights is available at Hans Fuchs' Glacier Landings (English/German).
Aviation can still be an adventure. Breitling-Orbiter (English/French) made the first nonstop balloon flight around the earth in 1999. Solar Impulse (English/German/French) will try to circle the earth with a solar airplane.
Switzerland is also a source of modern aircraft design. The future US armed forces pre-jet training plane, the Raytheon T-6A Texan II, is a licensed version of the Pilatus Aircraft (English) PC-9 Mk II.
Here are some more great international aviation websites:
Aviation Enthusiast Corner
Crewstart Flight Crew Portal (English)
The Virtual Aviation Museum (English/German)
meriweather's Flight Deck Simulations (English)
The Final Chapter of Kai Tak (English)
Unusual Aviation Pictures
Luiz Montero Aviation Calculations
SmartCockpit Airline Training Guides