Apollo-Soyuz Test Project
- Explains the goals and accomplishments of the first meeting in space of Soviet cosmonauts and American astronauts. Provides a mission summary, an image gallery, and links to a lengthy and official history of the joint program.
- http://www-pao.ksc.nasa.gov/history/astp/astp.html

Space History Notes
- Includes information on the Vostok, Voskhod, and Soyuz missions.
- http://www.svengrahn.pp.se/histind/histind1.htm

The Soviet Manned Lunar Program
- The evolution of the plan to land cosmonauts on the moon, with references.
- http://www.fas.org/spp/eprint/lindroos_moon1.htm

Zarya
- Diaries and fact sheets on space exploration by the Soviet Union and Russia.
- http://www.zarya.info/

Russian Space Agency
- Basic information on launch vehicles and facilities, and a picture gallery.
- http://liftoff.msfc.nasa.gov/rsa/rsa.html