Smug Twitter activists are wrong to think they are liberating Iran, says Will Heaven at telegraph.co.uk.

For Twitter enthusiasts, this has been a bumper year. With a new online tool at their chubby fingertips, they've helped to change the world. Or at least, that's what they think: the so-called Iranian Twitter Revolution recently won a Webby award for being "one of the top 10 internet moments of the decade".

Will Heaven explains heer why he finds that troubling.