Bowditch's original and still the most thorough American textbook on all aspects of navigation. Well illustrated and updated in 1995 to cover electronic navigation. Covers many related topics such as oceans dynamics, weather, ice, and chartmaking.
This site has developed about 20 small downloadable applications for Psion and Palm handhelds dealing with celestial navigation, mapping, GPS, tide prediction, and other boat management chores. Freeware and shareware.
Grab bag of facts and commentary on navigation software, plotting systems, and electronic charts,. Contains excerpts from hard-to-find bulletin board and newsgroup postings, as well as links to useful sites and vendor pages.
The chapter on nautical publications from the 1995 edition of The American Practical Navigator, originally published in 1802 and updated by NIMA. 12 pages on US government-published sailing directions, coast pilots, notices to mariners, light lists, sight reduction tables and other documents. Includes electronic delivery of some documents.
The chapter on dead reckoning from the 1995 edition of The American Practical Navigator, originally published in 1802 and updated by NIMA. 8 pages with diagrams and examples.