Wikipedia founder Jimmy Wales denies political muscle

Since October the website Wikipedia has deliberately taken itself off screens in protest against what it sees as infringements of the freedom of speech on the internet - in Italy, the US and only a few weeks ago in Russia. In the US it caused legislation to be shelved.

It has become a powerful animal - some believe it may become a political one too.

The BBC spoke to Jimmy Wales, the co-founder of the site, discussing what the criteria had become for this community to exercise its increasing muscle.