I just read about Nixty at Wired Campus. Sounds like an interesting idea. Provide an elearning platform for people to build courses on, one that uses open content.

Writing Spaces: Readings on Writing, Volume 1, is now available for free download. This open textbook collection includes sixteen essays written for the first year composition classroom, all released under Creative Commons licenses, all written by writing teachers for students.

As announced on Kairosnews by Editor David Blakesley, Parlor Press in conjuuction with Glassbead Books has published Looking for a Fight: Is There a Republican War on Science? under a Creative Commons Attribution-NonCommercial-NoDerivs 2.5 License. Go Dave! I think this may be the first CC licensed book put out by anyone in my field. Note that you can download the PDF version now for free or help support a progressive press like Parlor by buying a print copy.