Microblogging in China website. In February 2011, Tencent announced that its weibo registrations had exceeded 100 million. This threshold was officially passed by Sina Weibo in March 2011. However, according to iResearch's report on March 30, 2011, Sina Weibo took a commanding lead over its competitors, with 56.5% of China's microblogging market based on active users, and 86.6% based on browsing time. According to the China Internet Network Information Center, in the first half of 2011, Chinese weibo users increased from 63.11 million to 195 million. By July 2011, 40.2% Chinese Internet users and 34.0% Chinese mobile Internet users used weibo/microblogs. In Dec
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