https://fsfe.org/
Non profit organisation working to create general understanding and support for software freedom. Includes news, events, and campaigns.
free software foundationfsfeeurope
https://www.gnu.org/philosophy/free-sw.en.html
Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.
free softwaregnu projectfoundation