From the Bangkok Post:

The Ministry of Information and Communications Technology (ICT) plans to spend about 100 million to 500 million baht to build a gateway to block websites with contents defaming the royal institution. ICT Minister Mun Patanotai said 86 percent of those websites are from foreign countries. He said his ministry will give more attention to websites violating lese majeste laws than pornographic, obscene and terrorist websites. According to the minister, thousands of the websites have been found to have information offending the monarchy, but they could not be revealed because internet users would visit them once they are known.