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,
Tencent Weibo of QQ, Tencent doesn't intend to launch Tencent Weibo at a strategic level, but as a marketing tactic to curb competitors. Many celebrities are Tencent Weibo users, including, Ma Huateng, Zhou Hongyi, Liu Xiang and Jet Li. Initially only QQ users could register Tencent Weibo account corresponding to their own QQ number. Weibo accounts are not automatically registered for QQ users, they need to log in Tencent Weibo page for registration. Email address can be used for registration (formerly only QQ email address were supported). Posts can be shortened into an url.cn domain name. Each user can follow up to