Facebook CEO Mark Zuckerberg speaks at Facebook headquarters in Menlo Park, Calif., on Tuesday. Jeff Chiu/AP hide caption

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Google's Executive Chairman Eric Schmidt (left) arrives at Pyongyang International Airport on Monday. There is speculation that Schmidt's presence in North Korea could have an upside for Google by positioning Schmidt as the company's global ambassador. David Guttenfelder/AP hide caption

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Google Glass will be part of a trend in 2013 of computing and connectivity in devices we don't generally think of as computers. Seth Wenig/AP hide caption

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An image provided by Spotify shows music artwork displayed on its mobile app. Spotify began offering a free radio service for mobile devices in the U.S. in June. Before that, customers had to pay $10 per month to use its mobile app. Spotify Radio/AP hide caption

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Andras Gyorfi's winning entry in The Seasteading Institute's 2009 design contest. The institute supports the idea of permanent, autonomous offshore communities, but it does not intend to construct its own seasteads. Courtesy of The Seasteading Institute hide caption

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