517 points Open Source Evangelist Fedora Geek Ubuntu Open access DevOps Drupal Gamer Linux PHP Python SysAdmin Web developer Creative Commons Debian Developer
Drupal's community is one of the best examples of free and open source software culture during two decades of its design, development, and support in the CMS ecosystem.
These are my favorite free and open source communities to extend the list:
- Apache Software Foundation
- Debian Project
- Elm Software Foundation