Strict censor over the content on the Internet has led to the fact that during the year, China closed more than a million websites.

A study conducted by a Chinese state-owned institutions, showed that by the end of 2010, China had 40% fewer sites compared with 2009.

The researchers note that the tightening of government control is more related to porn sites.

Due to strict censorship in China inaccessible sites such as Facebook, YouTube and Twitter