[Wikilegal-l] Re: [Wikipedia-l] Public Library of Science GFDL Compatible

Fri Oct 31 00:11:08 UTC 2003

If I am not mistaken, the important part of CC licenses is that they are not 
necessarily viral.

For example, CC-by (aka CC-Attribution license) allows the authors of 
derivative works to change the license terms, as I understand. If you modify 
the work, you should still make an attribution. But you do not have to 
license that derivative work you created under the same (CC-By) license. You 
can fully copyright it, or you can release it under GFDL.

CC-by-sa (CC-Attribution-Share Alike)  is a different story. That is viral 
and requires derivative works to be released under the same licenese. This, 
I think is clear when one compares two license terms, especially the part 
4-b.
And here are the links:

http://creativecommons.org/licenses/by/1.0/legalcode

http://creativecommons.org/licenses/by-sa/1.0/legalcode

Sorry if I am mistaken. But if I'm right, you can create some derivative 
work first, and you can release it under GFDL. I hope someone else can 
double check the legal code on this point.

regards,

Tomos

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