The BIOS: Basic Input/Output System  
   BIOS memory timing, links.
   http://sysdoc.pair.com/bios.html

BIOS Setup Information Guide  
   How-to guides, general information, upgrades, identifying motherboards, links!
   http://www.sysopt.com/bios.html

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/

GBIOS Page  
   BIOS for PowerPC based embedded systems; developed, released by AG Electronics; supports PPC 750 (G3), 7400 (G4); AG Electronics TPE4, Motorola Sandpoint. Modular, Ethernet boots. Download, email support. [Open Source, GPL]
   http://www.agelectronics.co.uk/gbios/

FreeBIOS: SourceForge  
   Project page: summary, developers, downloads, news, forum.
   http://sourceforge.net/projects/freebios/

OpenBIOS: FSF/GNU.org  
   Description, links, contacts.
   http://www.gnu.org/directory/Software_development/Programs_for_small_specific_development_tasks/openbios.html

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/