Google Maps is a web-based mapping service that allows users to get driving directions, view satellite photos of earth, and use various other map-based functions. Google Maps is a free application from the search engine Google.Official Site: Google Maps1
On February 4, 2009, Google announced the release of the Google maps feature Latitude. The feature allows smartphone and laptop users to share their location with their contacts, if they chose to do so, by being tracked by GPS