It’s Official: U.S. Social-Networking Sites See Slowdown

I just got a hold of the comScore numbers for U.S. social-networking sites, and it ain’t pretty, folks. After peaking in October of 2007 with 71.9 million users, MySpace, the leading social network, has seen its audience fall back to around 68.9 million unique visitors. December saw no growth over November, though visitors were up 13% from last December. More alarming are the engagement metrics.

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