| 20090248807 | System and Method of Matching Presence for Subscribers in a Social Network - A social network allows subscribers to build and maintain a network of friends. The network includes a server that maintains travel information for the subscribers and for their friends. The server analyzes this travel information to determine whether a given subscriber will be geographically near a friend for a predetermined amount of time. If so, the server notifies the subscriber, and possibly the friend as well, so that the two can arrange to meet during that time. | 10-01-2009 |