Today in Tech: With Zuckerberg in Shanghai, is Facebook China inevitable?March 29, 2012: 10:14 AM ET
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* Mark Zuckerberg was in Shanghai earlier this week, vacationing with girlfriend Priscilla Chan. The visit reignited speculation about Facebook entering the Chinese market. (The New York Times)
* The New York Times' David Pogue reviews several Ultrabooks, PC-makers' answer to the MacBook Air. (The New York Times)
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