The Open University in the UK (very good for MBAs apparently) are becoming the first in the UK to offer open content under a Creative Commons Licence:
http://oci.open.ac.uk/pressrelease.html
OK so the Creative Commons licenses look good, but has one ever been tested in a court of law? Yes. And it won:
http://lists.ibiblio.org/pipermail/cc-community/2006-March/000984.html
Our taxes fund the collection of public data - yet we pay again to access it.
Make the data freely available to stimulate innovation, argue Charles Arthur
and Michael Cross.
http://technology.guardian.co.uk/weekly/story/0,,1726229,00.html