Online petitions 'could shape laws'

What makes MPs tweet?

Cat and mouse game with China's censors

Internet censorship: What you need to know

Is online freedom under threat in India?

Bahrain TV station struggles as signal blocked

Communist crackdown on China's microblogs

The rise of microblogs in China worries authorities

Protests and the role of social media

China carried out cyber attacks on Google

Google decision 'about rights'

Sampling North Korea's version of the internet

Can technology force change in Iran?

Iran intercepting mobile calls