Everywhere, every part of the world, almost everyone is using online social network. The world famous facebook and twitter and others. But what are those people in China using ? We cannot access facebook.com nor twitter.com from China. So, what are them using now ?
From my experience to China, I found out that they are using renren.com, it is something like facebook.com. How about something like twitter ? Now, the Baidu.com is launching the beta 百度说吧 http://t.baidu.com/ . It is something like micro blogging.
But is is currently for invitation （邀请码/邀请链接） only. The government there may only allowed real name to be used for the login.