Users in China are reporting that access to LinkedIn has been blocked throughout the country. By all indications, it seems that the popular career networking site has run afoul of the country’s infamous Great Firewall.

According to LinkedIn’s Hani Durzy, the company is aware of a blockage in China and is “currently in the process of investigating the situation further.”

The shutdown follows days of calls for a “Jasmine Revolution” in China, on the model of the Tunisian and Egyptian revolutions. Access to Twitter and Facebook has been blocked throughout China for some time; Chinese internet users seeking to use Twitter have been forced to access the site through difficult-to-use Virtual Private Networks (VPNs).

However, Chinese dissidents have another way of accessing Twitter…LinkedIn.

Use of LinkedIn, which is fully integrated with Twitter, was by far the easiest way to access Twitter in China. Messages can be easily read and posted through Twitter via LinkedIn.

One Chinese Twitter user who accesses both Twitter and LinkedIn through a proxy posted photos to Twitpic that seem to confirm a Chinese LinkedIn outage.