Microblogging in China in spreading the news quickly and discussing and evaluating government response. In 2012, there were 309 million people microblogging in China. "Wei boke" (微博客) and "weixing boke" (微型博客), commonly abbreviated as "weibo" (微博), are Chinese words for "microblog". A China-based microblogging service often names itself a weibo by putting it after the name of the service (e.g. Tencent Weibo, Sina Weibo). A similar word "围脖" () is used as Internet slang for "weibo". Fanfou () is the earliest notable weibo service. It was launched in Beijing on May 12, 2007 by the co-founder of Xiaonei (now Renren) Wang Xing ().
Sina Weibo Attempts to register accounts with usernames alluding to Ai Weiwei were blocked. On 30 March 2010, Hong Kong singer Gigi Leung blogged about the jailed Zhao Lianhai, an activist and father to a 2008 Chinese milk scandal victim. The post was later deleted by an administrator. However compared to other Chinese media formats, Weibo services are seen as allowing greater freedom of speech. Criticism against the Chinese government is more widespread on Sina Weibo and other weibo services. After the July 2011 Wenzhou train collision, many dissatisfied posts concerning governmental corruption were posted throughout the Sina Weibo. While Weibo services