The EAA works on a national level to help endure the "spirit of aviation."  They work to get children who have an interest in becoming a pilot, air traffic controller, mechanic, etc. achieve their goals.  EAA sponsors workshops for homebuilders teaching skills neccesary for them to build their own airplanes.  Founded in 1953 by Paul Poberezney, the EAA has worked for over 60 years to keep general aviation alive and prospering into the future.  They work today with other aviation organizations  to ensure that aviation friendly laws are passed in Washington D.C., and to help ensure that general aviaiton will continue well into the future. To learn more about the Experimental Aircraft Association on a national level, and how to join, please visit their website at  EAA.ORG