In its latest measure to tighten policing of the Internet, China has begun requiring bloggers and owners of personal Web sites to register with the government or be forced offline.
The new regulations, announced in March, took effect this week, with a warning on the Web site of the Information Ministry that the sites of those who failed to comply would be shut down.
The measures come against the backdrop of explosive growth of Internet use in China, and the development of Web logs and personal sites as alternative sources of news, as in many other countries.