Wikipedia Moving From GFDL To Creative Commons License
FilterMapReduce writes "The Wikimedia Foundation has resolved to migrate the copyright licensing of all of its wiki projects, including Wikipedia, from the GNU Free Documentation License to the Creative Commons Attribution-Share Alike 3.0 License. The migration is scheduled to be completed on June 15. After the migration, reprints of material from the wikis will no longer require a full copy of the GFDL to be attached, and the attribution rules will require only a link to the wiki page. Also, material submitted after the migration cannot be forked with GFDL "invariant sections," which are impossible to incorporate back into a wiki in most cases. The GFDL version update that made the migration possible and the community vote that informed the decision were previously covered on Slashdot."
Wikipedia is very different from a file upload site like Flickr, in that each page is not the work of one individual, but the combined work of many. Consistent licensing is essential - noone wants to have to check all the licenses of previous edits before they add their own to ensure that no license conflict happens.
GNU FDL was chosen as CC was not available at the time. Now CC has additionally become an accepted standard with a lot of material out there. It is great news as this makes it easier to mix content from and to their projects.
NB: The message above might reflect my opinion right now, but not necessarily tomorrow or next year.
RMS actually thinks it's a good idea :-)
http://rocknerd.co.uk