Wikipedia also contains images and other media that were not created by its editors, but are in the public domain. Other content on Wikipedia is released under different copyleft terms or licenses compatible with the GFDL, such as Creative Commons licenses. Still other items such as corporate logos, song samples, or copyrighted news photos are presented with a claim of fair use under the United States copyright law. The Wikimedia Commons, a media repository and sister project in which many of Wikipedia's images are stored, also allows other copyleft licenses, but does not accept fair use images. Contributors may choose to multi-license their contributions under both the GFDL and the public domain, or the GFDL and other licenses, allowing third parties to use the content under any of these licenses.