The Free Software Foundation (FSF) is a not-for-profit organization founded by RichardStallman to promote FreeSoftware. Its main objective is the release of a completely free replacement for Unix, called GNU. GNU stands for “GNU’s Not Unix.”

The FSF’s website can be found at The GNU website can be found at GnuEmacs can be found on the GNU website. hosts the FSF out of band notification account. Notification of service outages - planned and unplanned - are posted here.

GNU/Linux is an operating system combining the GNU System with the Linux kernel.