Creative Commons
- http://creativecommons.org/
- A non-profit that offers an alternative to full copyright. Offering work under a Creative Commons license does not mean giving up copyright. It means offering some of an author's rights to any taker, and only on certain conditions.
PHP Licence Information
- http://www.php.net/license/
- Covers licensing issues for developers distributing applications in PHP. Includes links to annotated version of the relevant licenses and other related resources.