- A History of the Lunar Orbiter Program - The NASA History Office offers a detailed history of the program startup, technical background, spacecraft manufacture, and mission summaries.
- Lunar Orbiter - Detailed information, experiments, data, and images on the five survey missions (1966-1967).
- Lunar Orbiter Photographic Atlas of the Moon - Digital edition of Lunar Orbiter Photographic Atlas, 1971, with all 675 plates.
- Lunar Orbiter Program - Overviews of the various Lunar Orbiter missions, with photographs and related links.
- Lunar Orbiter to the Moon - Information and data on the five lunar orbiter missions (1966-1967).
- Wikipedia: Lunar Orbiter program - An overview of the five unmanned Lunar orbiter missions launched by the United States in 1966 through 1967.
