Historic Wings : the online magazine of aviation for pilots and aviators
Historic Wings provides in-depth photo documentaries online, feature stories about aviation, pilots, and adventure, as well as historic events, the history of flight, and of man's quest for the skies and space beyond. Updated weekly, it is one of the most in depth aviation resource sites on the Net today
http://www.historicwings.com/
Cross and Cockade International
Science, Technology, Aerospace, Aeronautics - Cross and Cockade International. The Society of World War One Aero Historians.
https://www.crossandcockade.com/
warbirdsite.com
Science, Technology, Aerospace, Aeronautics - warbirdsite.com. Specialising in the buying and selling of warbird parts, equipment, books and memorabilia, as well as preservation, restoration and display of WWI and WWII aircraft at museums and airshows.
http://www.warbirdsite.com
The Luftwaffe, 1933-45
Science, Technology, Aerospace, Aeronautics - The Luftwaffe Homepage. Very comprehensive page on German aviation during WWII.
http://www.ww2.dk/
Welcome To FokkerDR1.com - Research on the Fokker Dr.I
A Historical Research Site on the Fokker Dr.I Triplane to Identify all 320 Dr.I's of the WW1 German fighter and Manfred Von Richthofen also known as the Red Baron. There are photos and data on the Fokker Dr.1, books and artwork along with WW1 aviation links.
https://www.fokkerdr1.com/
Army Aviation Heritage Foundation
Science, Technology, Aerospace, Aeronautics - Army Aviation Heritage Foundation. Dedicated to presenting the Army Aviation story to the American people through transportable flying presentations and static displays of the actual aircraft and equipment used by the men and women who served in Army Aviation.
https://armyav.org/
AHS International - The Vertical Flight Society
Science, Technology, Aerospace, Aeronautics - AHS International - The Vertical Flight Society. The professional society for the advancement of vertical flight technology and its useful application throughout the world.
http://vtol.org/