Beijing Online News and Information Panel has issued a warning in its third report to twelve dating websites, criticizing them for publishing sex trade information on their respective websites and ordering them to rectify their business before June 1.

Most of the twelve are professional matchmaking websites, and some of them are dating channels attached to some larger portal websites. Of those, money-boy.com, bodoto.com and y010.com are the ones that have the most serious problems, according to the report.

Because of the stiff competition within the dating website sector in China, many of these matchmaking websites have difficulty earning revenue and are therefore trying to grow the market by distributing pornographic materials and organizing cyber strip shows.

All this is expected to end with the government's anti-pornography campaign which was launched in April this year and focuses on eliminating Chinese porn.