Baidu have a social media service that it's named "Baidu Space".
Recently, Baidu updated its UI.
Its UI looks like "light blog" such as tumblr, and it can be said middle of Weibo and blog.
By the way, Baidu started to deliver a real-named weibo service that named "Baidu Speak" from Sep. 2009, but they already stopped its service less than one year on Aug. 2010.
After that, they didn't do any action for social media field at all, but they are would like to promote this "Baidu Space" as their main service of social media field?
We have to keep attentions to their actions as ever.