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"Posted on October 21, 2011"

This is almost four years old, shouldn't it have (2011) in the title? I don't think Facebook even does this anymore.

i didn't post this, but probably related to the news that came out today. Previously they have just been collecting data, but now they are activating it. http://www.technologyreview.com/news/541351/facebooks-like-b...