Associated Press
ADVANCE FOR SUNDAY MARCH 3 - FILE - In this Friday, March 12, 2010 file photo, people use computers at an Internet cafe in Fuyang, in central China's Anhui province. U.S. universities say the Sina Weibo microblogging site is just a small part of a much larger, long-term strategy to connect with a huge and important country. But one lesson is clear: success can't be judged by sheer numbers. (AP Photo)

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