> It might be helpful for somebody to summarize the net > addresses of the existing Free code licenses and what > kind of Free reuse they permit and what kind of conversion > from Free to non-Free they permit. > This is covered pretty well in the Ada Community License. Visit http://www.riva.com/booch/acl.html to read the full text. To my knowledge, nobody else has used it for licensing, opting instead for the (slightly) more restrictive GNU Public License. Let me make a comment here. I work in the C/Perl/Java communities as well as the Ada community. It is without fail that the Ada community worries the most about free vs. non-free stuff, and that there are a good many "commercial"(actually "aerospace") companies that reject "free" software for very unrealistic fears. Perhaps it's just a culture thing. Commercial companies are very focused on getting the job done and hitting time-to-market issues (and, yes, sacrificing quality in the process). I have yet to see corporate hand-wringing about licensing terms from any commercial companies I'm working for/with. That doesn't mean they're violating things, it's just that they don't have bored lawyers saying "How can we _prevent_ engineers from using this software?" The ACL answers all your questions, Mike.