== Copyright question thread == Bear in mind there are other threads relevant to the discussion, however!
Thomas Hofer wondered how Wikipedia can properly include content from a third-party FDL document , but the discussion veered to who holds copyright on the work on the pages , inspired by a confusing entry on Wikipedia FAQ (Who owns Wikipedia?) . It has since been amended, following Jimbo Wales's clarification of his view . Larry and Jimbo then discussed some of the motivation for using the FDL in relation to their vision for Wikipedia   . Jimbo mentions that Wikipedia is using invariant sections ; Axel Boldt contradicted that and raised the issue of principal authors .
Selected quotations 
- Wikipedia has no records about copyright-holders in its diffs and changelogs. When I create or edit a page, the corporation that runs Wikipedia is the copyright-holder of all my changes - which minimizes copyright-troubles. (And gives the corporation the right to release modified or unmodified content under any other license if they want).
- But what happens when I insert a FDL document from a third party?-- Thomas Hofer, 
- As far as I know, I have not signed away my copyright on the material I submit to Wikipedia. In my opinion, this means that I still hold the copyright of the pieces I have written, although the corporation is the copyright-holder of the site as a whole. I have not given up copyright, I just restricted my rights as the copyright holder by:
- 1. Putting the material under a Free Documentation License
- 2. Allowing any type of publishing and changing that one could reasonably expect be done to a Wikipedia entry--Andre Engels, 
- I think that this view is essentially correct. --Jimbo Wales 
- I think that the main thing we want to preserve is the simple operation of the community, and the ethos against authorship. --Jimbo Wales 
- What you do if you hit the submit button on wikipedia is to release your material under GFDL, without invariant sections....
- There is however one issue: if I release my article to wikipedia under GFDL, Bomis, *per the GFDL, section 4B*, has to maintain information about at least five of the principal authors. I think the easiest way to do this would be to maintain unlimited page histories, maybe downloadable by FTP somewhere if the material gets to voluminous for the web server. --Axel Boldt 
- See also : GNU Free Documentation License