"Former Peterborough MP Helen Clark has threatened to take legal action after a film of her involved in an altercation in a Peterborough hotel was posted on [YouTube]."

Two Yale law students are suing an operator and several anonymous users of AutoAdmit.com for psychological and economic injury including the loss of a job due to defamtory comments left by the anonymous users.

"Mike Arrington has been threatened with a lawsuit over a recent post. Defamation suits don’t seem to be exploding in tandem with the explosive growth of user-generated media, but there is a steady trickle."