Microblogging in China been arrested and controlled by the Chinese government, is one of the most active Chinese microbloggers on Twitter. Twitter users include Chinese nationals, who participated in, or led, the Chinese democracy movement that took place on June 4, 1989, such as Liu Xiaobo, the 2010 Nobel Peace Prize winner and a political prisoner in China. Microblogging services such as PornToot are also banned in China due to their lack of censorship. Weibo's most significant competition is rival microblogging service, WeChat, as of 2014 the country's leading messaging application. Below is an alphabetical list of notable China-based microblogging/weibo services: Microblogging in
Sina Weibo Sina Weibo. Posts on politically sensitive topics are deleted after manual checking. Sina Weibo is believed to employ a distributed, heterogeneous strategy for censorship that has a great amount of defense-in-depth, which ranges from keyword list filtering to individual user monitoring. Nearly 30% of the total deletion events occur within 5–30 minutes, and nearly 90% of the deletions happen within the first 24 hours. On 9 March 2010, the posts by Chinese artist and activist Ai Weiwei at Sina Weibo to appeal for information on 2008 Sichuan earthquake going public were deleted and his account was closed by website's administrator.