[Foundation-l] Wikibooks NL is changing License

[Jeff V. Merkey]

effe iets anders wrote:

>Dear all,
>
>The Wikibooks NL community has decided to change the default license
>of the textbooks for the future. That will mean that from a certain
>point in the near future all new submitted changes and new texts will
>be default double licenced under GNU FDL *and* CC-BY-SA-2.5 or later.
>The texts that are currently in Wikibooks NL will be marked as "GFDL
>only". This is so the project will be better able to spread it's
>content (as the reuser has a choise to use only a page of the
>wikibooks project without printing all the license etc)
>
>If every contributor of a certain page has agreed to relicense all
>his/her contributions on Wikibooks NL, also those in the past, under
>both licenses, the template stating the excemption of the default will
>be removed.
>
>It will still be possible to import pages from Wikipedia NL to
>Wikibooks NL. This will mean that a small part of the newly created
>pages will also be marked as "GFDL only". The community has taken some
>more precautions, such as creating templates to relicense all you
>contributions (HINT: {{Dubbel}}) and a page with explanation, but it
>would be too much in detail to explain that on this list. See this
>please as announcement, and contact the Wikibooks NL community through
>our Tutors' Chamber ([[b:nl:Wikibooks:Lerarenkamer]])
>
>With kind regards,
>
>Lodewijk Gelauff
>
>  
>
Unless I am mistaken, GNU based licenses become null and void if you 
modify the license terms in any way. This includes
publishing under multiple licenses (which is modifying the terms). I do 
agree that making the more open is a good thing, but I
think you may void the GFDL terms if you release under dual licenses.

Jeff