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Social networking for your pets
OpenSocial doesn't matter nearly as much as the Social Graph API.
These two services can help you find a bathroom or your next companion.
A mix of social networking and massive multiplayer online role-playing games (MMORPG).
One of the fastest growing social-networking Web sites on the Internet
An interactive service that hosts user-created art
One of the most talked-about social networks in the Web community
Find out who else is on the site you're visiting.
BitTorrent is an advanced peer-to-peer sharing technology that runs using a client system.