| ||A Short Guide to Celestial Navigation|
Downloadable electronic book. Also several shareware programs.
| ||Australian Institute of Navigation|
About the organization. Online newsletter. Meeting and membership information.
| ||Celestial Navigation Forum|
Discussion forum and live chat.
| ||Celestial Navigation Net|
Annotated hub site of resources relating to navigating by the stars, including theory, practice, history, instruments, and classroom links.
| ||German Institute of Navigation (DGON)|
About the organization.
| ||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.
| ||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.
| ||Navigation and Related Subjects|
Covers celestial navigation theory, sextant errors and corrections, rhumb line caluclations and coastal navigation and conning.
| ||Near-Earth Navigation and Geodesy|
Describes the activities and research of the Navigation Research Office at the European Space Operations Center.
| ||Nordic Institute of Navigation|
About the organization. Membership information. Meeting programs. Discussion forum.
| ||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.
| ||Sea and Space|
Dicusses astronomical navigation, GPS navigation, and navigation using satellite images.
| ||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.
| ||US Coast Guard Navigation Center|
News, updates and advisories. Links to local US Coast Guards sites. Downloadable publications.
| ||Visual Global Positioning System|
About a map-based three dimenesional air or two dimensional marine or land based navigation system.