Linux Etc..

Google
A.P. Lawrence - Unix, Linux & Mac OS X Help site (1/31/04)
Fedora Linux - free open-source alternative operating system
FreeBSD - advanced OS for Pentium, Athlon & other compatible architectures (5/21/2005)
FreeSBIE - FreeBSD-based operating system that works directly from a CD (5/21/05)
FRESHMEAT - vast Linux free resource site (7/1/04)
IntelliCAD 2001 - 3D CAD (might not be free anymore)
Java - download from Sun Microsystems
Knoppix - a bootable CD with a collection of GNU/Linux software (5/21/05)
LinuxHardware.org - Linux hardware/software resource site (1/31/04)
LiveCD - create your own LiveCD from a currently installed Linux distribution (5/21/05)
SLAX - small bootable CD containing the Linux operating system (5/21/05)