The Facebook page 'Everybody Draw Mohammed Day!' encouraged users to submit images of the prophet on May 20.
Muslims argue that any representations of the Prophet are blasphemous. A series of cartoons of the prophet published in a Danish newspaper in 2005 sparked violent protests and death threats against the cartoonists.

Resourceful IT experts in Pakistan have launched their own version of the social networking site Facebook after the real thing was blocked for showing 'blasphemous' images of the Prophet Mohammed.
MillatFacebook, meaning Nation Facebook in Urdu, was launched on Wednesday and has already attracted some 8,000 users.
Omar Zaheer Meer, one of the six web developers, said their aim was to offer an alternative to Facebook which condemned the contest

Over the past ten days, access to Facebook, Youtube, encyclopaedia site Wikipedia and photo-sharing site Flickr has been temporarily blocked in Pakistan.

It remains to be seen how successful the government will be at keeping Pakistan's nearly 20 million Internet users from accessing the blocked sites.

Other countries, such as China, permanently ban Facebook and YouTube. But citizens often have little trouble working their way around the ban using proxy servers and other means.