Good Options for dual licensing?

Dave Smith dave at
Sat Sep 29 16:51:58 MDT 2007

Check out Trolltech's commercial license vs GPL license of Qt. They do 
almost exactly this, but instead of derivative works, they simply allow 
you to link against their library without GPL'ing your app. Pretty 
close, so it may work for you what you want.


Steve wrote:
> I am about to release a bunch of source code into the wild under the GPL v3.
> I've read it, and feel it's appropriate for what I'm trying to do
> However I would also like to offer a paid licensing option which
> allows people to close the source on their derived works.  Does anyone
> know of a good option I can offer for sale which allow folks to do
> this if they want to?
> Thanks in advance,
> Sincerely,
> Steve
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