Organizers' Collaborative

Description:
a volunteer project to help GNU/Linux become an operating system that the average user can install and operate easily

URL:
http://www.seul.org/

Description:
an international organization dedicated to the development of free software, and the home of GNU Project that developed a complete Unix-like operating system.

URL:
http://www.fsf.org/

Description:
an interactive database for nonprofit organizations to keep data - memberships, donations, activist information - in one place.

URL:
http://www.ebase.org/