David Gerard writes "Version 1.3 of the GNU Free Documentation License is out (FAQ). This license is little-used, except on the #8 site in the world: Wikipedia. And this version includes special provisions to re-license wiki-based content from GFDL to the much simpler Creative Commons Attribution-ShareAlike license 3.0, as requested by the Wikimedia Foundation. Wikipedia plans to hold a public consultation process to decide whether and how to migrate to CC-BY-SA. The discussion is already running hot and heavy."