It's only a matter of months since world leaders were praising the power of the internet as a weapon for change.
Social media lubricated the waves of protest which stormed over the Middle East and North Africa earlier this year.
But now, British Prime Minister David Cameron has changed his tune after rioters in the UK used the internet to co-ordinate their protests, saying and he wants social media reined in.
Censorship of the internet is, of course, old hat to the Chinese authorities who have been at it for years.
Jeremy Goldkorn is the founder and editor-in-chief of Danwei, an internet and media website in China.
All Comments