Wikibooks:Ownership
From Wikibooks, the open-content textbooks collection
Wikibooks is a collaborative project where people from around the world work together to author textbooks. All textual contributions to wikibooks are released under the Creative Commons Attribution/Share-Alike License version 3.0 (unported) (and the GNU Free Documentation License for historical reasons), and no single author may exercise editorial control over a single page or a book. By pressing the "Save page" button, you are giving express permission for Wikibooks to host your content, and for other wikibookians to edit, modify, or delete your content.
[edit] Ownership
By contributing your content to Wikibooks, you are agreeing to let other people edit, modify, delete or use your content without being able to control that use or modification. All Wikibookians are equal in their authority, and no single Wikibookian may exercise authority or control beyond that of other Wikibookians. No Wikibookian may prevent other users from editing or modifying content, although Wikibooks Administrators can protect pages from being edited as a deterrent to vandalism and wheel warring. Page protection in this sense should not be used to exercise control over the contents of a page.
If you do contribute to Wikibooks, you maintain copyright over content that you contributed. Furthermore, you are free to use your own contributions and relicense them as you see fit (including non-free licenses) although you may not revoke the GFDL license for the use of your content. Do not contribute your content to Wikibooks if you do not want to grant it under the GFDL license (so long as the copyright is valid). Modifications to your work, made by other copyright-holders are not yours to use in this manner, you may not relicense a work that contains additions or modifications made by any other copyright-holder, without their express permission.
