A free distribution of the GNU/Linux operating system. It is maintained and updated through the work of many users who volunteer their time and effort. http://www.debian.org/ports/powerpc/
MkLinux is an Open Source operating system which consists of an implementation of the Linux operating system hosted on the Mach microkernel. http://www.mklinux.org
Home of the Linux/PPC port, it houses both user information and developer docs. It also lists current news and software updates to stay ahead. http://penguinppc.org