- Air Force Historical Studies Office: http://www.airforcehistory.af.mil/
- Air Force History: http://www.airforcehistory.af.mil/
- Airman Magazine: http://airman.dodlive.mil/. Official magazine of the USAF. The magazine is available only on-line.
- American Air Museum, Duxford, England: http://www.americanairmuseum.com/ . For its database of American airmen, see http://www.americanairmuseum.com/person .
- American Fighter Aces: http://www.americanfighteraces.org/about.htm
- ArmyAirForces.Com: http://www.armyairforces.com/
- Army Air Forces Historical Association: http://www.aafha.org/
- Aviation History Online Museum: http://www.aviation-history.com/
- B26.COM (Martin B-16 Marauder): http://www.b26.com/
- B-26 Marauder Historical Society: http://www.b-26mhs.org/
- Bomber Legends Magazine: http://www.bomberlegends.com/
- Collings Foundation: http://www.collingsfoundation.org/index.html
- Combat Aircrews’ Preservation Society: http://www.combataircrew.org/
- Control Towers – U.S. Airfields in the UK:http://www.controltowers.co.uk/
- Hanger 25 Air Museum, Big Spring, Texas: http://www.hangar25airmuseum.com/main/index.asp. Tom Applewhite received his bombardier training here in 1943.
- Hell from Heaven Men, Bombardiers of WWII:http://freepages.military.rootsweb.ancestry.com/~hfhm/
- History of the B-17 Flying Fortress:http://www.91stbombgroup.com/91st_info/91history.html
- Honoring a B-17 Crew Operating Over France: http://www.slideshare.net/robbinlaird/honoring-the-b17
- Les Avions de Legende: http://les-avions-de-legende.e-monsite.com/. Includes videos of different types of WWII aircraft.
- Mighty Eighth Air Force Message Board: http://www.facebook.com/pages/Mighty-Eighth-Air-Force-Public-Message-Board/186787361359524
- Mighty 8th Cross-Reference: http://mighty8thaf.preller.us/
- Military History Encyclopedia on the Web — articles on each type of weapon used, including aircraft: http://www.historyofwar.org/weaponsframe.html.
- National Museum of the United States Air Force:http://www.nationalmuseum.af.mil/. See also their history of the development of each type of US bomber aircraft at: http://www.nationalmuseum.af.mil/research/aircraft/bomber/index.asp
- National Personnel Records Center, St. Louis:http://www.archives.gov/st-louis/military-personnel/
- United States Army Air Forces in World War II:http://www.usaaf.com/
- United States Army Air Forces in World War II: http://www.usaaf.net/
- U.S. Army Heritage & Education Center:http://www.carlisle.army.mil/ahec/index.cf
- USAAF Chronology: http://paul.rutgers.edu/~mcgrew/wwii/usaf/html/
- USAAF Resource Center, A Warbirds Resource Group Site: http://www.warbirdsresourcegroup.org/URG/
- USAAF Serial Numbers: http://www.joebaugher.com/usaf_serials/usafserials.html
- Vet Friends: http://www.vetfriends.com/airforceunits.cfm
