World air sports federation, was founded in 1905 and is a non-governmental and non-profit making international organization with the basic aim of furthering aeronautical and astronautical activities worldwide. http://www.fai.org/
AMA is a self-supporting, non-profit organization whose purpose is to promote development of model aviation as a recognized sport and worthwhile recreation activity. http://www.modelaircraft.org/
Get the weather forecast for launching model aircraft. Wind speed, wind direction, and temperatures for the next 3 days. Over 1000 locations in the USA. http://www.usairnet.com/cgi-bin/launch/code.cgi
Covers every aspect of the aeromodelling hobby, including radio control, free flight, control line, and static. Includes news, products, features, and an online planshop. http://www.modelflying.co.uk
The building and restoration of control line, free flight, and radio controlled classic aircraft models. Photos, projects, engine projects, tips, reviews, contacts, and related links. http://www.classicaircraftmodels.com/
An online community for aeromodellers from all aspects of the sport. Galleries, movie clips, reviews, articles, discussion forums, and chat room all maintained by dedicated aero modellers. http://www.bumpygreen.co.uk/