We've got free-software.
Use this tag for free software, defined as computer software that gives users the freedom to run the software for any purpose as well as to study, modify, and distribute the original software and the adapted versions. (consider free as in freedom ; don't confuse with freeware)
Ummmm... Isn't this the entire site?
While I like free-software, most of these questions are really about the free-software-definition.