Free educational text books (GNU Free Documentation License)

[mips]

These text books are published under the GNU Free Documentation License.
http://ftp.cc.uoc.gr/mirrors/nongnu.org/fhsst/

[saulgoode]

Thanks for the link.

The Massachusetts Institute of Technology (http://ocw.mit.edu/OcwWeb/web/about/about/index.htm) releases a lot of its course material under the Creative Commons license (http://ocw.mit.edu/OcwWeb/web/terms/terms/index.htm#cc)