Yahoo CEO Marissa Mayer delivers the keynote address at the annual Consumer Electronics Show in Las Vegas earlier this month. Robert Galbraith/Reuters/Landov hide caption

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Nick d'Aloisio displays his mobile application Summly, which Yahoo recently purchased for a reported $30 million. But the Internet company is killing the app and integrating the algorithm that drives it into its own technology. Matt Dunham/AP hide caption

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NPR's Steve Henn works from his Silicon Valley home. He says his fragmented schedule allows him to fit in time with his daughters. "It works for me because, in the end, the hours balance out — and I am in control of my time," he says. Steve Henn/NPR hide caption

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Google's data center in Council Bluffs, Iowa, houses servers in over 115,000 square feet of space. Connie Zhou/Google hide caption

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Investors will be betting that Facebook won't make its users so uncomfortable over privacy that they quit. Photo Illustration: Joel Saget/AFP/Getty Images hide caption

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