Sukhoi’s “Frogfoot” Su-25, Su-28, Su-39
- Discusses origins and history of three Soviet-built attack aircraft.
- http://www.hudi.republika.pl/Su-25-1.htm

The A-37 Association
- Helping to bring together those who flew, worked on, worked with, or have high admiration for the "Great Little Fighter." Site contains extensive material on the A-37 Dragonfly, including photos and links.
- http://a-37.org/

Air War Vietnam
- Tribute to the aircraft and crews that flew in Vietnam.
- http://www.airwarvietnam.com