Social networking is a method to link communities of people together in some fashion, usually by software. The software, though varies from network to network usually gives users the ability to share and upload photos, videos and bookmarks, blog, message friends, link with or make new friends.
Comment
Founded in June of 2003, Rojo is a news aggregator and social network. It uses tags to allow users to find news, blogs, etc. Currently, there are over 125,000 users.