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 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.