Ali Yong, a marketing head at Sina, revealed at the DCCI Adworld 2011 advertising conference that Sina's Twitter-like service is currently growing at 10 million users a month, and the company estimates that Weibo will exceed 150 million users this year.
The company also said it now has more than 60,000 verified accounts, which are known to consist 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 Weibo. Source:SAI
Marketcap and P/E still look reasonable