Linux Online - Linux-Friendly Hardware - Listings, help, and shopping links for Linux-compatible systems, components, and peripherals. - http://www.linux.org/hardware/
LinuxQuestions.org HCL - The LinuxQuestions.org Hardware Compatibility List allows users to see whether their hardware will work in Linux. Any member can add an entry and the HCL is free to use. - http://www.linuxquestions.org/hcl/
DEC - Information of Linux support of the Tulip chip used in certain ethernet cards. - http://www.scyld.com/network/tulip.html
Linux Support for HP PCs - A page offering Linux support for HP PCs. - http://hp-linux.cern.ch/support/centp.php3
HP9000/300 Linux - Linux on the 68x based HP9000 series of workstations. - http://www.tazenda.demon.co.uk/phil/linux-hp/
KernelDriver Linux - Kernel-mode driver debugging and code generation tools. - http://www.jungo.com/kerneldriver.html
Linux Network Drivers - Quick index to Linux network driver pages by speed. - http://www.tux.org/pub/people/donald-becker/
handhelds.org -- Home Page - The goal of Handhelds is to encourage and facilitate the creation of open source software for use on handheld and wearable computers. - http://www.handhelds.org/
Net Express - high-end Linux systems VAR, and they go to great lengths to tell the reader about why they choose the hardware they do - http://www.tdl.com/~netex/
x86-64 Linux - AMD supported site dedicated to porting GNU/Linux to new AMD x86-64 architecture. Eventually, you'll be able to download full Linux distributions for x86-64 from this site. - http://www.x86-64.org/