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Facebook CEO Mark Zuckerberg speaks during a media
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Facebook CEO Mark Zuckerberg speaks during a media event at Facebook's headquarters in Menlo Park, Calif. On Thursday, Facebook announced updates to its News Feed. (March 7, 2013)(Credit: Getty Images)

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Facebook News Feed: Mark Zuckerberg discusses changes

Facebook revamped its News Feed to include bigger photos, sorting by topics and a more consistent design across devices as the world's most popular social network ramps up efforts to make money from content.