According to news.com, the announced website defacement contest is currently taking place, but there are chances that "web site attacks was mainly a flop".

The zone-h.org website is not accessible anymore, after it received 500 defacements links. As h-zone is the "official" repository of the contest, it is unclear how many sites have really been defaced ;-)

Due to h-zone.org trouble, the person running the challenge extended the contest for another day.