A man walks past the Sina Weibo booth at the ChinaJoy Expo, also know as the China Digital Entertainment Expo and Conference, in Shanghai, China on 29 July, 2011. With over 100 million subscribers, Weibo, China's own twitter-like micro blog social network service from Sina.com has become a rare platform for Chinese netizens to voice their discontent as well as exposing corruption. So much so that the central government has recently required all users to register with their real names in hopes of increasing its censorship.