Too Late To Register 09 F9 As A Domain Name
EFF provides the background law for the dissemination of an alphanumeric decryption code for a DRM product. A timeline of how the key spread would be of value.
Digg's experience will make an interesting case study in how to manage risk in the era of user-generated content (and the disconnect between what a CEO believes he/she needs to say to their customers, and what a lawyer would have them say).
More coverage: IHT: 'A Lesson In Mob Rule On The Web."
UPDATE: News.com on how various websites responded to DMCA letters from AACS, owners of the decryption key in question.