Blogs are like any other form of media. Once they challenge values of the dominant class or societal group, they are often censored. This is mostly the case when you talk about politics. Blogger arrests have hit a record high.

More bloggers than ever face arrest for exposing human rights abuses or criticising governments, says a report.

Since 2003, 64 people have been arrested for publishing their views on a blog, says the University of Washington annual report.

In 2007 three times as many people were arrested for blogging about political issues than in 2006, it revealed.

More than half of all the arrests since 2003 have been made in China, Egypt and Iran, said the report.