BEIJING (AP) ? State media say more Chinese cities have adopted rules requiring Internet microblog users to register with their real names, an expansion of regulations introduced in Beijing last week.
The official Xinhua News Agency said Thursday that Guangzhou and Shenzhen have adopted the real-name rules, a measure expected to deter online expression.
China has more than 485 million Internet users, the most of any country in the world. Content deemed politically destabilizing or pornographic is blocked.
The tougher guidelines imposed last week in Beijing affected the hugely popular Twitter-like service run by Sina Corp.
With the rules expanded to Shenzhen, Sina rival Tencent must also follow suit.