BIOS - Growing article, with links to many related topics. Wikipedia. - http://en.wikipedia.org/wiki/BIOS
LinuxBIOS - Open source Los Alamos Laboratory project to replace normal BIOS with a little hardware initialization and compressed Linux kernel that boots from power-on, and have OS control a cluster node from power-on. Needs few parts to boot, fast (3 sec.), freedom - http://www.linuxbios.org/
FreeBIOS - Project goal: be a central gathering point for BIOS firmware code that can be used to initialize and boot various services. At first, due to the large scope of the project, it will likely only boot a Linux kernel on a few chipsets. Later, it may be a full - http://freebios.sourceforge.net/
BIOS Setup Information Guide - How-to guides, general information, upgrades, identifying motherboards, links! - http://www.sysopt.com/bios.html