I like free software and movement was started by FSF.

Bruce Byfield writes about the Free Software Foundation (FSF) how they transformed themselves into an activist organization in the past year.

From the Linux.com article:
At the start of 2006, the Free Software Foundation (FSF) was largely inward-looking, focused on the GNU Project and high-level strategic concerns such as licensing. Now, without abandoning these issues, the FSF had transformed into an openly activist organization, reaching out to its supporters and encouraging their participation in civic campaigns often designed to enlist non-hackers in their causes. Yet what happened seems to bemuse even FSF employees.

Read more at Linux.com

You can learn more about FSF here and here.