From Wired.com: "An alliance between three media file-tracking companies makes it possible to monitor, track, contact and shut down
the systems of users who engage in illegal activity on the Internet.
BayTSP, Media Enforcer and Copyright.net -- companies that have applications to search for copyrighted materials
-- agreed to share their tracking technologies with each other as part of an equity deal that creates a loose federation
of companies involved in rights management."