Free Software Foundation provides short summaries of the key open source licenses, including whether the license qualifies as a free software license or a copyleft license. Also includes a discussion of what constitutes a free software license or a copyleft license (e.g., a Copyleft license is a general method for making a program or other work free, and requiring all modified and extended versions of the program to be free as well.)
Free Software Foundation poskytuje krátká shrnutí klíčových open-source licencí včetně toho, zda je licence určená pro free software či se jedná o copyleft. Obsahuje též debatu na téma, co představuje licence pro free software a copyleft.