Facebook is banned in China, so what's the equivalent?

To understand where the masses spend their time in China, you don't have to look much farther than RenRen, which pretty clearly took it's cues from Facebook - from the fields required, right down the the COLOR of the signup button.

The Chinese Facebook 

RenRen is quite a bit smaller than Facebook, boasting only 120 million members, but studies show that RenRen's members are more active, more urban and more upscale than Qzone, CHina's oldest and largest social network. 

Is there a Pinterest Equivalent in China? Why yes, there is.