About one-quarter of lower-income families with school-age children say a mobile device is their only way to access the Internet at home, according to a new study. iStockphoto hide caption

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Mobile Internet "hot spot" devices are now the most popular item at the Spring Hill Library in Tennessee. Courtesy of the Spring Hill Library hide caption

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China's Cyberspace Administration minister Lu Wei (second from right) and other officials attend the opening ceremony of the Light of the Internet Expo on Tuesday as part of the Second World Internet Conference, which starts Wednesday. Lu has said that controlling the Internet is about as easy as "nailing Jell-O to the wall." Xu Yu/Xinhua /Landov hide caption

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The Internet has made it easier for older women to find romance, but it also has made them vulnerable to online scammers. 96 Studio/Getty Images hide caption

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California's new digital privacy law essentially requires a warrant before any business turns over any of its clients' metadata or digital communications to the government. Hailshadow/iStockphoto hide caption

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People huddle in front of the Habana Libre hotel in Havana, trying to get on the Internet. Carrie Kahn/NPR hide caption

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Miami swimwear entrepreneur Mel Valenzuela (right) explains online strategies to Cuban business owners Victor Rodriguez (middle) and Caridad Limonta (left) in Wynwood this month. Miami boutique owner Monica Minagorri (rear) watches. Tim Padgett/WLRN hide caption

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Genevieve Bell, an anthropologist and vice president at Intel Corp., with teammate David Weinberger, senior researcher at the Berkman Center for Internet & Society at Harvard University. Samuel LaHoz/Intelligence Squared U.S. hide caption

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