Sina Weibo Sina Weibo Sina Weibo () is a Chinese microblogging (weibo) website. Launched by Sina Corporation on 14 August 2009, it is one of the most popular social media platforms in China. As of Q3 2018, Sina Weibo has over 445 million monthly active users, with surging stocks, advertising sales, revenue and total earnings in the quarter. At the start of 2018, it surpassed US$30 billion market valuation mark for the first time. In March 2014, Sina Corporation announced a spinoff of Weibo as a separate entity and filed an IPO under the symbol WB. Sina carved-out part 11% of Weibo
Microblogging in China Twitter, Facebook and Plurk have been blocked since then. Sina.com's CEO Charles Chao considered it to be an opportunity. Sina launched Sina Weibo on August 14, 2009. Its executives invited and persuaded many Chinese celebrities to join the service, which led to strong growth in user numbers. Two other Chinese Internet portals, Sohu and NetEase, launched the beta versions of their weibo sites almost simultaneously, on January 20, 2010. On January 30, another Internet portal Tencent closed its weibo service, Taotao, and started its new weibo service Tencent Weibo on March 5, 2010. Building on the large number of its