The increasing availability of GPS-enabled devices is changing the way people interact with the web and brings a large # of GPS trajectories representing peoples location histories. GeoLife 2.0 is a location based social-networking service on Virtual Earth that enables people to build connections with each other using their location histories. By mining the similarity between peoples locatoin histories, this system can help a user automatically discover potential friends in a community with similar interests. This system also enables travel experts who can help plot the ideal sight-seeing locations for you to visit in any part of the world. Brought to you by Microsoft Research Asia.