Article One Partners has recently launched and it looks like a winner. In short, they are paying people to research and discover prior art related to patent studies they find interesting. There first three related to the drug Lipitor, Semiconductor memory devices and my favorite, video game patents.
They are offering up to $50,000 bounties for the discovery of new prior art. I think initiatives like these will only increase the transparency in patents and decrease some of the worthless patent litigation in this country.