In addition to Twitter, Facebook, Foursquare and YouTube, China has blocked LinkedIn, the lamest social networking site. Apparently, the non-protest protests on Wangfujing, the famous pedestrian street in Beijing, last week was organized through LinkedIn.

A LinkedIn user identified as “Jasmine Z” last week set up a discussion group to post opinions on whether the revolutions that brought down the leaders of Tunisia and Egypt should be brought to China.

Search results for Jon Huntsman is also blocked on Sina.com’s microblogs. The U.S. ambassador and presidential candidate was filmed walking by the protest.