Mon, 16 Jan 2012 05:20:11 +0100 SHANGHAI (Reuters) - Use of microblogging in China quadrupled in 2011 compared with the previous year, with nearly half of all Chinese Internet users now taking to the near-instant service to gather news and spread views, a government Internet think tank said Monday. Microblogging, or "Weibo" as it is known in China, allows users to send short messages of 140 characters or less to their followers. Twitter, the most popular microblogging platform in the world, is blocked by China's censors. ... (Source: Reuters)