Aircraft Owners & Pilots Association
http://www.aopa.org/
Airline Pilots Association
http://www.alpa.org/alpa/DesktopDefault.aspx
Experimental Aircraft Association
http://www.eaa.org/
Federation Aeronautique Internationale
http://www.fai.org/
Flight Safety International
http://www.flightsafety.org/home.html
International Air Transport Association
http://www1.iata.org/index.htm
National Association of State Aviation Officials
http://www.nasao.org/
The Ninety-Nines
http://www.ninety-nines.org/
Oregon Pilots Association
http://www.oregonpilot.org/
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