Free culture
If you haven’t read Pig and the Box yet, you should. It’s an anti-DRM children’s book that was originally written in response to the Captain Copyright nonsense happening north of the border. It’s available from the blog Push the Third Button Twice as a free PDF file released under a Creative Commons license. Just look on the blog in the left-hand sidebar.
You can also buy a copy of the Pig now. The book is being made available in a print edition. And if you look below the links to the free PDF’s, you’ll find a link for a Fundable project. If 100 people buy autographed copies of Pig and the Box at a price of $20 each, the author will move from CC-NC-SA (that’s Non-Commercial Use, released under the same license) to CC-SA (that’s released under the same license, commercial use permitted).