From CreativeCommons blog (11 Mar 09):CC0 (read “CC Zero”) is a universal waiver that may be used by anyone wishing to permanently surrender the copyright and database rights they may have in a work, thereby placing it as nearly as possible into the public domain. CC0 is not a license, but a legal tool that improves on the “dedication” function of our existing, U.S.-centric public domain dedication and certification. CC0 is universal in form and may be used throughout the world for any kind...