<img alt="" height="1" width="1" />The 10 biggest hoaxes in [b]Wikipedia's first 10 years[/b]
LinuxWorld.com
By Jon Brodkin, Network World Wikipedia will celebrate its 10th birthday on Saturday, with founder Jimmy Wales having built the site from nothing to one of ...

and more »

View the article

I'm sure there are plenty bigger hoaxes than most of those listed here, but one notable one springs to mind - Lee Dennison.

The WR timeline on wikipedia has quite a few big ones which the list missed out.

http://wikipediareview.com/index.php?showtopic=25352