Americas
Argentina
Brasil
Python Brasil - Python User Group
Canada
- ... and a few others
Nicholas Swindale's lab website - computational and visual neuroscience lab at UBC
Chile
Wiki Debian Chile - Wiki de la comunidad de Debian en Chile
Tecnocimiento Free (as in freedom) Technology based projects and business.
Colombia
FECTP Organization that offers education services.
Slec Education and Free Software in Colombia
El-Directorio Comunidad de Software Libre de Colombia
United States
SmartEd Wiki - SmartEd Services Company Wiki (internal use only)
SciFloWiki - NASA Jet Propulsion Lab - SciFloWiki
XSPEC - NASA Astrophysics - XSPEC
ITFWiki - ITF Corporate Wiki (internal) and Documentation Repository
Venezuela
http://www.python.org.ve - Página del grupo de usuarios Python de Venezuela.