5 Facebook Rivals Hot On Its HeelsAs Facebook tackles big challenges, its competitors are increasingly drawing new users and increased participation. Take a look at who's nipping at the heels of Facebook's success.
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Microsoft's So.cl is no more than a blip on the social networking radar at this point, but, with the recent announcement of increased social capabilities in Office, not to mention the potential for some kind of internal/external social that integration with SharePoint, it's worth watching. So.cl--which combines elements of social networking, search and video sharing--was initially introduced on college campuses, but is now open to anyone who wants to give it a try.
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