On Dec 1, 2007 9:41 PM, Mike Linksvayer ml@creativecommons.org wrote:
- IMPORTANT - I believe it should allow mixing of similar licenses,
e.g. CC-BY-SA into BSD -- the Definition of Free Cultural Works endorsed by Wikimedia could be a guideline as to which licenses can be mixed: http://freedomdefined.org/Definition
I like all of your points, including the last one, but it is a little unclear. I think what you mean is that for "embedded" uses, the containing document should have to be under a free license, not necessarily a compatible copyleft license. This would address use of copyleft images on Wikinews (CC BY), for example.
I agree entirely with this point. (For example, no one objects when CC-BY-SA and GFDL photos and text are intermixed -- the right spirit is there even where the technicalities may not line up -- but people do object when they see ostensibly copyleft material being used in a more restrictive work.)
CC-BY-SA allowing embedded use in any work licensed under a license meeting the free content definition provided that the original requirements are kept on the copylefted work would be a good way to do it. (For example, using CC-BY-SA media within a CC-BY article -- fine, but any derivative of the article containing the embedded media also must remain under a free content license.)
-Kat