I wanted to include an additional restriction with my cc license that explicitly prevented my work from being used in advertising. The old audio sampling licenses included this restriction, but they are now where to be found on the current licenses for other work. Unfortunately there is a clause in all cc licenses that prevents any additional restrictions from being attached.
i understand the logic behind not allowing additional clauses to be added, since the cc universe would be a crazy, undecipherable mess if everyone was adding and removing provisions and restrictions from their licenses. The human readable summary would no longer be accurate, and search engines wouldn't be able to 'understand' the licenses.
But I am guessing that the no advertising clause would be important to many people. For example you want to contribute your photos to Free Culture without stopping people from creating commercial derivative works, but you don't want a photo of your family being used by P&G to sell laundry detergent. The no advertising restriction covers this: "You may not use this work to advertise for or promote anything but the work you create from it."
Does anyone else feel a need for this restriction to be available in the current licenses - at least while CC is still working on determining what constitutes commercial use?
Has anyone else had to mix up their own license to include an additional restriction?
