09/09/2011 09:20 am ET Updated Nov 09, 2011

Facebook Friend Filter Auto-Sorts Your Pals Into Groups

You've got 500-something friends, all of about 50 you really interact with. You went to school with Lucy and Henry, you've worked with Mike for years, and Joe lives just down the block. Facebook knows all of this -- it just doesn't really go out of its way to show that it knows all of this. Until now.

Sometime recently, Facebook began rolling out "Smart Lists" to select users -- which, as the name implies, intelligently groups certain obvious groups of friends into pre-packaged lists. Take that, Google Plus!

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