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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LinkedIn, with its 150 million users, has always been known as the social network for professionals. Its no-nonsense interface and focused raison d'etre keep users engaged and satisfied. Its recent interface update was more spit and polish than major change, which seemed to suit its users just fine.
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