Earth Sciences: Geomatics: Global Positioning System: Guides

Side-by-Side comparison pages of Garmin's MapSource line of GPS moving map products.

Practical guides, tips, tricks, equipment, software reviews, and other related information provided by recreational GPS users.

Magazine, buyer's guide, solutions database, columns, products and reviews, and employment opportunities.

Introduction to GPS Applications

NMEA-0183 and GPS Information

Large collection of information/education resources and links, from Iowa State University.