Project Mercury
- Provides a history of the goals, history, and technology of America's first manned space program. Includes links to a detailed image gallery, technical reports, diagrams, mission summaries, and crew biographies.
- http://www-pao.ksc.nasa.gov/history/mercury/mercury-overview.htm

Astronaut John Glenn and the Friendship 7 Mission
- A brief history of John Glenn's first mission into space in 1962. Includes photos from the mission, a transcript of the flight, and related links.
- http://www.archives.gov/exhibit_hall/featured_documents/friendship_7_transcript/index.html

Universe Today: Mercury Mission News
- A selection of news reports on the missions.
- http://www.universetoday.com/html/topics/mercurymissions.html

How Project Mercury Missions Worked
- Mission overviews with photographs. Also includes a more detailed article on "How Project Mercury Worked."
- http://www.howstuffworks.com/mercury-mission.htm

Mercury Redstone 3
- Spacecraft and mission profile from the National Space Science Data Center.
- http://nssdc.gsfc.nasa.gov/nmc/tmp/MERCR3.html

Mercury Redstone 4
- Spacecraft and mission profile from the National Space Science Data Center.
- http://nssdc.gsfc.nasa.gov/nmc/tmp/MERCR4.html

Mercury Atlas 6
- Spacecraft and mission profile from the National Space Science Data Center.
- http://nssdc.gsfc.nasa.gov/nmc/tmp/1962-003A.html

Mercury Atlas 7
- Spacecraft and mission profile from the National Space Science Data Center.
- http://nssdc.gsfc.nasa.gov/nmc/tmp/1962-019A.html

Mercury Atlas 8
- Spacecraft and mission profile from the National Space Science Data Center.
- http://nssdc.gsfc.nasa.gov/nmc/tmp/1962-052A.html

Mercury Atlas 9
- Spacecraft and mission profile from the National Space Science Data Center.
- http://nssdc.gsfc.nasa.gov/nmc/tmp/1963-015A.html

Project Mercury: A Chronology
- NASA book detailing all aspects of Project Mercury, including prior events, research and development, and mission operations.
- http://history.nasa.gov/SP-4001/cover.htm

This New Ocean: A History of Project Mercury
- Part of the NASA Historical Series describing the origins, preparation, and nature of America's first achievements in manned space flight and details the basic events in the managerial and technological history of Project Mercury.
- http://www.hq.nasa.gov/office/pao/History/SP-4201/cover.htm

Space Medicine in Project Mercury
- A history of the medical support program during the Mercury program. Discusses the origins of space medicine and its impact on the selection of astronauts and spacecraft life-support systems.
- http://www.hq.nasa.gov/office/pao/History/SP-4003/cover.htm