Let's collaborate!

I have started an experiment in collaborative writing and I am would like to invite anyone who is interested in participating to please email me. The first project is to collaboratively write a Physical Science textbook utilizing Google Docs as the medium. This textbook will be licensed under the GNU Free Documentation License and is intended as an alternative to purchasing textbooks. I am focusing on the NC Standard Course of Study since that is where I teach, but hope that this can be modified into derivative works that are tailored to anyone's needs. Please help me spread the word and let me know it you are interested!