GPS

Major Vendors

• Garmin
• Magellan
• Trimble

General Information

• GIS 2 GPS - GIS and GPS for educators and students
• GPS Information Net - An extremely broad collection of FAQ's, reviews and links by Joe Mehaffey and friends
• GPS Tracklog - GPS news and reviews
• FAA Navigation Services - Global Navigation Satellite System (GPS)
• GNSS - A GPS industry news

Activities and data sources

• Geocaching - What to do with that GPS you now have
• OpenCaching - An alternate geocaching site
• GPS File Depot - Free maps for GPS receivers and tools to make your own maps
• Base Station Data - University of Rhode Island

20 June 2011