CM11A: The RS232 interface that allows your computer to send and receive X10 commands. http://www.x10.com/products/x10_ck11a.htm
HCS II: Home Control System II, PC-controlled and/or standalone controller (X10, serial, digital and analog I/O, RS485). http://www.cc-concepts.com/
ADI: Makers of the Ocelot, PC-controlled and/or standalone controller (X10, serial, IR and RS485). http://www.appdig.com/adicon.html
Netgear: Manufacturer of data networking equipment aimed at the home and small business. They just announce their Gigabit copper products, products I can see being used in future HA systems. http://www.netgear.com/
Oregon Scientific: WM918 Weather station. http://www.oregonscientific.com/
Dallas Semi: Creators of the Dallas Onewire parts and the Dallas TINI boards. http://www.ibutton.com/TINI/index.html
Lynx10: Marrick Limitted, serial-to-X10 interface. http://www.marrickltd.com/
Cisco: One of the leaders in data communications equipment. http://www.cisco.com/
Nortel: One of the leaders in voice and data communications equipment. http://www.nortel.com/
Etherboot: The etherboot project aims to create a bootable, diskless workstation. http://etherboot.sourceforge.net/
Home Page: Author's collection of Home Automation links, mostly for software, but ever increasingly links to news, companies and other projects related to UNIX (Linux in particular) and HA. http://members.home.net/ncherry/
LHA Project: Author's attempt to control the world right from the console of his computer. http://LinuxHA.sourceforge.net/