Celestial Navigation Net Annotated hub site of resources relating to navigating by the stars, including theory, practice, history, instruments, and classroom links.
Royal Institute of Navigation About the London based organization. Membership information. Online newsletter and briefings. Mailing list. Search the organizations library or journals. Competitions and events schedule.
Near-Earth Navigation and Geodesy Describes the activities and research of the Navigation Research Office at the European Space Operations Center.
How Columbus and Apollo Astronauts Navigated Comparative analysis of techniques used then and now including dead reckoning and celestial navigation. Discussion of the "longitude problem."
Navigation and Related Subjects Covers celestial navigation theory, sextant errors and corrections, rhumb line caluclations and coastal navigation and conning.
The Navigation Foundation A non-profit corporation dedicated to the preservation of the art of celestial navigation. Mission, membership benefits, contact information.