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.

US Coast Guard Navigation Center - News, updates and advisories. Links to local US Coast Guards sites. Downloadable publications.

Nordic Institute of Navigation - About the organization. Membership information. Meeting programs. Discussion forum.

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.

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. Dicussion of the "longitude problem."

International Association of Institutes of Navigation - About the organization. Online newsletter. Membership information. Definitions of navigation terms. International directory of organizations.

A Short Guide to Celestial Navigation - Downloadable electronic book. Also several shareware programs.

German Institute of Navigation (DGON) - About the organization.

Australian Institute of Navigation - About the organization. Online newsletter. Meeting and membership information.

Sea and Space - Dicusses astronomical navigation, GPS navigation, and navigation using satellite images.

Celestial Navigation Forum - Discussion forum and live chat.

Navigation and Related Subjects - Covers celestial navigation theory, sextant errors and corrections, rhumb line caluclations and coastal navigation and conning.

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.