Sina Weibo the domestic microblogging services including the first weibo service Fanfou. Many popular non-China-based microblogging services like Twitter, Facebook, and Plurk have been blocked from viewing since then. Sina's CEO Charles Chao considered this to be an opportunity. SINA Corporation launched the tested version of Sina Weibo on 14 August 2009. Basic functions including message, private message, comment and re-post were made possible in September 2009. A Sina Weibo–compatible API platform for developing third-party applications was launched on 28 July 2010. On 1 December 2010, the website experienced an outage, which administrators later said was due to the increasing numbers of
Microblogging in China Sohu Weibo and NetEase Weibo were suspended between July 9–12 and July 13–15, 2010, respectively. Since then, all of the Chinese weibo services have attached a note of "beta version" to their title logos. Commentators said that Sohu Weibo and NetEase Weibo were being "reorganized" by Chinese administrators. The weibo services were not officially approved, so they could only be operated as a "beta version". Some closed weibos were re-opened under restrictions in 2009 or 2010, including Fanfou, which was re-launched in November 2010. Most of Fanfou's users never came back. Before July 2009, Fanfou was the most influential weibo