Bob Gaudio's GPS Links

GPS (Global Positioning System)
The Official GPS Cache Hunt Site
The Historical Marker Database	Downloadable GPX files by state county.
GPS Latitude-Longitude Converter
GPS Latitude-Longitude Distance Calculator
Waymarking
Letterboxing
GPS Games
Buxley's Geocache Waypoint-Statistics
World Geodetic System 1984
The Degree Confluence Project
NextBus GPS Tracker	Bus GPS tracker for several U.S. and Canadian cities.
CTA Bus & Train Tracker	Chicago Transit Authority
Indiana University Bus Tracker	Bloomington, IN
Western Michigan University Bronco Bus Tracker	Live GPS tracker.
UM Magic Bus	University of Michigan bus route GPS tracker.
Where Is My Streetcar?	Toronto.
Live London Bus Map
Using The UTM Map Coordinate System
San Francisco, CA Cab Tracker
New York City Snow Plow Tracker
Chicago Snow Plow Tracker
Tweat-It	NYC mobile food vendor locations.
GPS City.com
NGS Datasheet Retrieval
The GPS Store
GPS Satellite Coverage Prediction
The GPS System
Garmin
POI Factory
Location Maps - United States
GPX-POI File Generator