Weather

• Coulterville - Intellicast
• Marina - Intellicast
• San Jose - Intellicast

Clubs and Associations

• United States Hang Gliding Association
• Wings Of Rogallo
• Sonoma Wings Hang Gliding Club
• Coastal Condors
• Nor Cal Aero Club
• DHV German Hang Gliding Association
• Yosemite Hang Gliding Association
• Marin County Hang Gliding Association
• Northern California Hang Gliding Association
• The Shasta Sky Sailors
• Berkeley Hang Gliding Club
• Crestline Soaring Society
• San Luis Obispo Soaring Association
• Oregon Hang Gliding Association
• Cloudbase Country Club
• ValleyVille Hang Gliding Association
• Arizona Hang Glider Association

Manufacturers

• Aeros
• Airborne
• Airwave
• Avian
• Icaro Gliders
• La Mouette
• Moyes America
• Speedwings California
• Speedwings Europe
• Quasar
• Wills Wing
• High Energy Sports
• Woody Valley 
• Blue Sky Avionics
• Bräuniger Flugelectronic
• Flytec Flight Instruments
• Garmin International
• Angle of Attack

•  Mother Lode Sky Riders
•  Sonoma Wings
•  Wings of Rogallo
•  The Oz Report
•  The Yosemite Hang Gliding Association
•  Northern California Hang Gliding Association
•  Hat Creek Rim
•  Crestline Soaring Society