Internet users in China
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Cat and mouse game with China's censors

12 November 2012 Last updated at 02:16 GMT

A day after China's 18th Party Congress opened, Google says that several of its online services to the country were blocked.

China operates a huge system of internet controls but, as the BBC's Hong Kong correspondent Juliana Liu reports, the threat of censorship hasn't been enough to stop the spread of social media.