A network of orbiting geosynchronous satellites enable a GPS tracking system to pinpoint the location of a range of objects and people, with accuracy to within a few feet. As with many technological developments, GPS tracking was first used by the military to find targets and to navigate. Recently, the cost of GPS systems has decreased significantly, and the military has suspended degradations to the signals, thereby making GPS tracking systems available for civilians to utilize.

GPS vehicle tracking systems have been invaluable to companies who need to keep track of their vehicle fleets, while simultaneously allowing their drivers to use the devices to make deliveries more efficiently, and allowing estimation of time of arrival. GPS vehicle tracking systems have also allowed delivery companies to determine the most efficient route for their drivers to take.

A potential down-side to increasing use of these devices is the invasion of privacy some see these devices as presenting. Already, commercial drivers have their daily trips catalogued and analyzed. Similarly GPS tracking device technology has already been shown to be effective at allowing the tracking of individuals as these devices have been implemented in espionage for years.

The advent of GPS technology has had an impact on many recreational activities such as hiking, camping and fishing because it allows GPS users to better navigate new areas. Additionally, a new recreational activity has come from GPS itself, an activity called "geocaching." This new activity is something like a game of hide-and-seek using the longitude and latitude coordinates to locate a particular container.

A new and highly desirable automobile add-on is the GPS tracking system. Located in the dashboard, the GPS receiver eliminates the awkwardness of trying to read a map while driving by processing a driver's location request and giving spoken or visual directions. Other useful features are now being added to these devices, such as information on restaurants and hotels.

As the cost of GPS tracking systems decreases, it is predictable that their use will only increase. These systems are quite adaptable, and are sure to take the place of old-fashioned maps and guidebooks. We may one day even use such a system to keep track of our belongings, so that we need no longer worry that they will be lost or stolen.