GPS General Internet Resources

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The Truth about GPS: How it works
Nicely done short "What Is GPS" video from US Air Force.
Garmin BaseCamp
Transfer waypoints, geocaches, routes, and tracks to and from your GPS device.
Garmin Webupdater
WebUpdater is a free application that lets you update your unit software.
GPS upgrade aims to see more, do more
This article from the Seattle Times has some great history about GPS technology and where it is headed in the near furture.
Degree Confluence
The goal of the Degree Confluence project is to visit each of the latitude and longitude integer degree intersections in the world, and to take pictures at each location. The pictures and stories will then be posted here.
Garmin
Garmin's official web site. Garmin designs, manufactures, and markets Global Positioning Systems, GPS receivers and other consumer electronics
Garmin GPS Video
A video to introduce you to the Garmin eTrex Legend GPS and its features.
GPS.gov
Public information about the Global Positioning System (GPS) and other space-based positioning, navigation, and timing (PNT) systems
GPS & 4-H
The 4-H site has got a great object lesson about GPS and satellites plus how to use a GPS to figure area a link to a great slideshow.
GPS Product Reviews
Get GPS Information on Garmin, Lowrance, Magellan and other consumer receivers.
GPS: The New Navigation
Ever wonder how the Global Positioning System (GPS) works? This extraordinarily complex system is actually based on some simple concepts. Find out what they are in this Shockwave game.
Magellan
Magellan's official web site. Magellan designs, manufacturs, and markets Global Positioning Systems, GPS receivers and other consumer electronics.
NASA World Wind Project
World Wind lets you zoom from satellite altitude into any place on Earth. Leveraging Landsat satellite imagery and Shuttle Radar Topography Mission data, World Wind lets you experience Earth terrain in visually rich 3D, just as if you were really there.