Some aviation sites I have found good value in using

Thirty Thousand Feet aviation directory: http://www.ThirtyThousandFeet.com/    
Airline Pilot's Historical Society: http://www.angelfire.com/il2/aphs/   
Ultimate Aviation Links: http://www.ultimateaviationlinks.com/aviationorganizations.php   
WWII Autobiography of a Pathfinder Halifax & B-24 pilot and personal friend: http://www.writerspen.com.au/                                                 
Atlantic Flyer GA Aviation newspaper: http://aflyer.com       
Experimental Aircraft Association (EAA): http://www.eaa.org/       
Aircraft Owners and Pilots Association: http://www.aopa.org/