I had the thought it would be useful to offer a quick and simple breakdown of the more popular licenses for those who don't speak legalese. Ideally the format should be to list a license name, and a simple, unopinonated, breakdown of what the license states. (The short version!) ---- The license for the standard Tcl distribution is http://purl.org/tcl/home/software/tcltk/license_terms.html . In comp.lang.tcl the following summary of the Tcl license: In even simpler language: Paragraph 1. It's ours. Paragraph 2. You can use it, modify it, give it away, or sell it. But only if you tell people about these terms. Paragraph 3. Don't sue us if it doesn't work. Paragraph 4. We don't have to fix it, either. Paragraph 5. Even if the Government uses it, we can use it ourselves, give it away, or sell it. ---- I am aware of the document linked below, however it does not provide simple breakdowns of all the common licenses one might wish to use. It did have a nice summary of the TCL/TK license, so I copied it here hoping to start the ball rolling. See [license] ...