Tencent Weibo and will stop upgrading its micro-blogging service. Tencent Weibo act as an 'open' platform for developers and users to communicate and share data widely. After signing on, developers and users can use the open API to create an application. Through the application, they can obtain information or spread new information. Tencent Weibo may censor discussion of public social interest activities, such as worker or people's strikes. An example was blocking discussion of Foxconn worker's strikes in October, 2012. Tencent Weibo Tencent Weibo is a Chinese microblogging (weibo) website launched by Tencent in April 2010, and is still currently under beta
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.