As you certainly know, continental/communist China is one of those countries that have an institutionalized censorship system to protect its citizens. It starts with a very strong management of Internet cafÃ©s, but it is also based upon a stringent filtering of many web sites out of the country and judged as undesirable. Very efficient, but what are the filtered web sites? You only have to test on GreatFireWallOfChina.
I am happy to report that roumazeilles.net is not censored there and can be read from China.