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Facebook's annual software fest F8 kicks off April 18

The social network usually saves its biggest announcements for the event, where CEO Mark Zuckerberg holds court in front of an army of web developers. So expect lots of in-the-weeds stuff, too.

Facebook f8 developers conference

Zuckerberg introduced the Facebook "timeline" Sept. 22 in San Francisco at the company's f8 conference for some 2,000 entrepreneurs, developers and journalists.