For instance, he said, Yahoo releases user identities to Chinese authorities; Google blocks specific cache pages; Microsoft shuts down MSN Space; and Internet routers are installed to filter content.

As a result of Internet companies giving away user information to governments, many journalists, media assistants, and activists are killed, harassed, or imprisoned, RSF claims.

According to the RSF's Press Freedom Barometer 2006, 56 cyber-dissidents in Asia have been imprisoned -- 48 of whom are from China.