Update #2: Kevin Marks weighs in, wondering whether people can/should use the DMCA takedown provision "for good" -- a question I imagine Matt Haughey would answer in the affirmative.

Update #3: Fantastic -- we're starting to get some traction, with more and more bloggers pointing others to the guide. We're going to see many more legal challenges for bloggers as they get more attention (and power), and people need to be armed with as much information about their rights as possible.

Dan Gillmor make an excellent point: "Think bigger than blogging, however. This is important for all people doing bottom-up media, of whatever sort."

Yep. "Blogging" is only a term for how people are self-publishing on the Internet these days. This is about safeguarding our freedom to communicate with one another via the Internet.

Update #4: Viva la fair use! Chris Locke, the master of broken rules, links to the legal guide, which of course contains information about why he's able to break them.