GPL Violations Project
- This project raises awareness of infringing uses of GPL software and acts as an information clearinghouse for reporting and dealing with violations.
Groklaw - GPL Resources
- An excellent resource site for information about the General Public License (GPL). Includes links to Groklaw articles, information on the GPLv1, GPLv2, and the GPLv3 (including the preliminary drafts), legal cases, history of GPL development, and relevant external resources.
Linux.com Article - "Why I love the GPL"
- An outstanding article about the advantages of the GPL (GNU General Public License) and its importance to software freedom. (2005)
Lizenz Center, license list
- Extensive list of Free Software/Open Source and Open Content licenses organized by type of license; site available in English and German.
Open Source License Law Resource Center
- Numerous links to open source license law for law professionals working on projects involving open source licenses and people working on open source software programs needing information on legal issues.