GPS
I was under the impression that GPS was supposed to make your life easier…
I was under the impression that GPS was supposed to make your life easier…
Dennis Crowley (foursquare), “Adventures in Mobile Social 2.0: Twelve Months of foursquare”
Mark L. DeMulder (United States Geological Survey), “The Digital National Map of the United States of America”
OpenMobileMap | The Free Mobile Map Resources