These are interesting on copyright/open licenses.
http://docs.umwdtlt.org/other/copyright-and-attribution/ (based in the USA but connected to creative commons)
http://opendefinition.org/
http://oaspa.org/why-cc-by/ (on CC-BY rather than SA/NC)
http://docs.umwdtlt.org/other/copyright-and-attribution/ (based in the USA but connected to creative commons)
http://opendefinition.org/
http://oaspa.org/why-cc-by/ (on CC-BY rather than SA/NC)