15th position is acquired by Weibo.com, a Chinese microblogging website. It is one of the most popular site in China. It was launched by Sina Corporation on 14 August 2009.

Weibo.com is a Chinese microblogging site, similar to Twitter, launched in August 2009. According to Sina Corp the microblogging site has more than 200 million users and millions of posts per day, and is adding 20 million new users per month. The company also said it now has more than 60,000 verified accounts, consisting of celebrities, sports stars and other VIPs. The top 100 users now have over 180 million followers. Furthermore, Sina said that more than 5,000 companies and 2,700 media organizations in China are currently using Sina Weibo.