Science and technology

Associated Press
This undated handout product image provided by Facebook shows the company's App Center.  On Thursday, June 7, 2012, Facebook is beginning to roll out its App Center to its nearly 1 billion users, so they can find games and other applications with a social component more easily. The App Center will initially feature about 500 Facebook apps, mostly games, that the company has reviewed to meet its quality standards. (AP Photo/Facebook)

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