Anil Dash and Matt Haughey took advantage of the ability to add to/improve upon public domain materials by adding linky goodness and improved readability to Cory Doctorow's much-discussed and most excellent speech on DRM @ Microsoft. Then someone else took the next logical step and created a Wiki.
Very cool. Thanks, guys.
Update: Via Todd Bishop at the Microsoft blog, Cory's speech as an audio file, read by none other than Jason Kottke.