The Free Software Foundation website is safe, easy to navigate and filled with information. FSF promotes free software and enduser rights, as in the GNU licenses, especially using the Linux OS, but not exclusively. You can donate time, money or projects, though none is required for full access. Hopefully they will thrive and prosper.
The Free Software Foundation (FSF) is a non-profit corporation founded by Richard Stallman on 4 October 1985 to support the free software movement, a copyleft-based movement which aims to promote the universal freedom to create, distribute and modify computer software.