Bernard Wong, Ymir Vigfusson, Alex Slivkins, and Gun Sirer's work on the peer-to-peer overlay Cubit was slashdotted this week:
http://tech.slashdot.org/article.pl?sid=08/05/22/1513252
From the slashdot post: Cubit, a new open-source p2p overlay, enables the Azureus BitTorrent client to look up torrents via approximate keyword search... Cubit completely decentralizes the lookup process through an efficient, light-weight peer-to-peer overlay that can perform approximate matches. It performs searches without relying on any centralized components, and therefore is immune to legal and technical attacks targeting torrent aggregators.