As of this evening Chinese time, social networking platform Facebook is no longer reachable from China Mainland locations such as Shanghai and Guangzhou. Only via foreign proxy server the site can still be accessed which indicates that the Great Chinese Firewall took its toll already one week after Facebook started offering its services in Chinese. ... and thanks for all the fish. We'll keep you posted.
Update: So far only the users of the ISP China Telecom seem to be affected. The site can still be accessed through China Mobile and other providers.
Update 2: As of 21:45 Facebook.com is working again throughout China, although slower than usually. Most China Telecom users reported that the site had been inaccessible for at least 6 hours today - reasons unknown.
Update 3: July 1st 2008, 4pm Chinese time - Facebook.com not reachable again for China Telecom users. The IP 18.104.22.168 cannot be pinged, however the site can still be connected at 22.214.171.124. Chances are high that Chinese Government is indeed trying to block Facebook through the "Great Chinese Firewall". Details to follow.