Sina Weibo China's microblogging market based on active users and 86.6% based on browsing time over competitors such as Tencent Weibo and Baidu's services. The top 100 users had over 485 million followers combined. Furthermore, Sina said that more than 5,000 companies and 2,700 media organizations in China use Sina Weibo. The site is maintained by a growing microblogging department of 200 employees responsible for technology, design, operations, and marketing. Sina executives invited and persuaded many Chinese celebrities to join the platform. The users of Sina Weibo include Asian celebrities, movie stars, singers, famous business and media figures, athletes, scholars, artists, organizations,
Microblogging in China and methods. They usually have an automatically checked list of blacklisted keywords. Sometimes administrators monitor these manually. Posts on topics which are sensitive and forbidden in China (e.g. Human Rights, Liu Xiaobo) are deleted, and the user's account may be blocked. Some scandals and controversies such as the Li Gang incident, were uncovered by weibo. After incidents such as the Wenzhou train collision and the 2010 Shanghai fire, criticism of the CPC government increased on weibo. Although weibo services have not always met the approval of the government, many Chinese officials have opened weibo accounts. An organ of the Central