The Navigation Foundation - A non-profit corporation dedicated to the preservation of the art of celestial navigation. Mission, membership benefits, contact information. - http://www.navigationfoundation.org/
Lunar Rover Demonstration Navigation Group - About the Carnegie Mellon researchers creating a prototype for a new lunar rover that can navigate rugged terrain and the navigation system they're using. - http://www.cs.cmu.edu/afs/cs/project/lri-3/www/lrd/nav-home.html
Navigation and Related Subjects - Covers celestial navigation theory, sextant errors and corrections, rhumb line calculations and coastal navigation and conning. - http://jacq.istos.com.au/sundry/navig.html
Celestial Navigation Forum - Discussion forum and live chat. - http://jollyroger.com/zz/yna4d/CelestialNavigationhall/shakespeare1.html
Near-Earth Navigation and Geodesy - Describes the activities and research of the Navigation Research Office at the European Space Operations Center. - http://nng.esoc.esa.de/
The Institute of Navigation - Meeting programs with abstracts. Award winners and nomination forms. Membership information. Online version of the quarterly newsletter. Index of the organization's annual journal. - http://www.ion.org/
Nordic Institute of Navigation - About the organization. Membership information. Meeting programs. Discussion forum. - http://www.nornav.org/
US Coast Guard Navigation Center - News, updates and advisories. Links to local US Coast Guards sites. Downloadable publications. - http://www.navcen.uscg.gov/
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. - http://www.rin.org.uk/
Celestial Navigation Net - Annotated hub site of resources relating to navigating by the stars, including theory, practice, history, instruments, and classroom links. - http://www.celestialnavigation.net/