For years they have largely turned a blind eye to paid-for services, such as WiTopia's, which provide virtual private networks (VPNs) enabling encrypted connections to the many websites blocked by the firewall.
ECONOMIST: Authorities with the jitters
International news channels and websites were blocked.
ECONOMIST: Uzbekistan
These once provided a handy way for Chinese users to see material stored on blocked websites.
ECONOMIST: China backtracks on banning Google��up to a point
Access to at least six news websites has been blocked by Sri Lanka in the past few days.
BBC: Sri Lanka blocks websites for 'maligning' president
It comes after officials say a number of websites have already been blocked because they have engaged in "character assassination" of the president.
They have also blocked some websites carrying the hardliners' views.
ECONOMIST: China
One opposition newspaper has been closed down and BBC websites also appear to have been blocked by the Iranian authorities.
BBC: Ahmadinejad wins Iran presidential election
In February Italy abruptly blocked access to 684 betting websites.
ECONOMIST: Gambling in Europe
The Jordanian government says it has blocked more than 300 unregistered and unlicensed news websites in a bid to curb "sensationalised" reporting.
BBC: Jordan blocks 'unlicensed' national news websites
应用推荐
模块上移
模块下移
不移动