TeachingOpenSource.org is a collaboration point. There are still many open source communities, schools, companies, and organizations with educational initiatives operating in isolation. If you're in any way involved with or interested in supporting the teaching of community-based open source, please join us -- and if you know anyone working in this space, please help us get the word out.
These are my first two books: X Power Tools, a thorough guide to the X Window System (O'Reilly, ISBN 9780596101954) and Fedora Linux: A Complete Guide to Red Hat's Community Distro, a practical hands-on book on Fedora (O'Reilly, ISBN 9780596526825).
Fedora Linux is also available for online reading through Safari and in downloadable PDF format from oreilly.com