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Are we suffering from Facebook fatigue?

The number of people who visit Facebook has been leveling off over the past few months in the U.S., and even dipped by about 800,000 individuals in January. According to the latest stats from comScore, Facebook attracted 33.9 million unique visitors in January, 2008, down 2 percent from 34.7 million in December, 2007. Maybe all that friend spam has something to do with the decline. Will the Facebook fatigue get worse, or is this just a temporary dip?

Worldwide, Facebook is still doing fine. It grew 3 percent in January over December, attracting 100.7 million unique visitors.

Can I get an "amen" on that friend spam? So glad they added that "ignore all" feature. (They're also trying other ways to minimize spam.)

MySpace, meanwhile, saw unique visitors down slightly from December to January to 68.6 million.

So where's the action right now among young professionals? Is Facebook still the way to go? Or does MySpace still command a lot of activity? And what about LinkedIn? Anybody using that?

Meanwhile, Blogger's Blog is thinking long-term, asking whether people will still care about Facebook in, say, 2013. 

That's the rumor. Google, whose Orkut social network is big only in Brazil, of all places, is rumored to be working on a challenger to Facebook.

More from the New York Times on Google's "OpenSocial" project. 

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