The authorities are now determined that blogs should also be brought under state control.
Press advocacy group Reporters without Borders said the initiative would "enable those in power to control online news and information much more effectively".
Private bloggers must register the full identity of the person responsible for the sites, the Chinese Ministry of Information Industry (MII) said.
Commercial publishers and advertisers can face fines of up to one million yuan (£66,000) if they fail to register.
All blogs and websites must be registered by 30 June. (News.BBC.co.uk, 06/07/05.)
Related: My post, 50,000 INTERNET POLICE IN COMMUNIST CHINA.