A man visits Sina's Weibo microblogging site in Shanghai Thomson Reuters Chinese blogging site Weibo has shut down more than 50 accounts that published stock tips and market information, reports said Thursday. Beijing last week launched a campaign targeting what it sees as misinformation about China's financial and economic policies. The most popular account that was shut down had more than 3 million followers. See more stories on Insider's business page . Weibo, one of China's most popular blogging sites, has shut down dozens of accounts that offered stock tips and financial information, according to reports Thursday. The moves were...