[lug] GPL/Open Source License Questions

[Jeffrey Siegal]

Glenn Murray wrote:
> I would like to release the framework and some plugins under the GPL
> and then continue supporting the project by selling proprietary
> plugins.

You can do this, but only because you are the copyright owner.  No one 
else can sell proprietary plug-ins, since *they* would be violating the 
GPL license by doing so.  You can't violate your own license.

You can also give a special license to XYZ corp that allows them to do 
something that they couldn't do under the GPL license.

As someone else pointed out, you will not be able to accept 
contributions under a regular GPL license; any contributors will also 
need to agree to your arrangement.  Perhaps that's okay with you, but 
keep in mind that to outsiders this arrangement is less attractive -- 
why should they contribute to something you can exploit commercially and 
they can't?