Relevant article: http://openp2p.com/pub/a/oreilly/ask_tim/2003/bountyquest_10... Tim O'Reilly: "some months after we'd awarded the bounty, splitting it three ways for prior art that wasn't completely on the money, someone sent in a killer piece of prior art. I still have it on my bookshelf, in the odd event that Amazon loses its senses and sues anyone else over 1-click."