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,
Internet censorship in China AIDS activist, Hu Jia asked netizens in mainland China to wear black T-shirts on June 4 to oppose censorship and to commemorate the date. Chinese web services such as Weibo eventually censored searches of both “black shirt” and “Big Yellow Duck” in 2013. This has aggravated anti-western sentiment amongst some Chinese bloggers. One blogger, Zhou Xiaoping argued in an essay "Nine Knockout Blows in America's Cold War Against China," that American culture was "eroding the moral foundation and self-confidence of the Chinese people." According to Chinese studies expert Johan Lagerkvist, scholars Pierre Bourdieu and Michel de Certeau argue that this