FreeBSD - The FreeBSD Project is dedicated to providing a commercial quality networking and desktop OS solution, at this time focused specifically on taking maximum advantage of Intel x86 (PC) architecture machines.

Linux ARM - ARM Linux is a port of the PC version of Linux.

Linux x86 - Linux x86 (Site #2)

Linux/68k

Linux/PowerPC - Linux for PowerPC computers- PowerMacs & PReP (BeBox,RS6ks,PowerStack,etc)

NetBSD - NetBSD (Site #2) NetBSD (Site #3) NetBSD (Site #4) NetBSD (Site #5)

OpenBSD - The OpenBSD project involves continuing development of a multiplatform 4.4BSD-based Unix-like operating system.