http://mnemo.nu/atheos/
AtheOS site with various info about AtheOS including a nice FAQ.

http://www.other-space.com/athedocs/
AtheOS site with various AtheOS documentation.

http://www.0reality.com/
AtheOS site with some info about AtheOS and a forum page.

http://www.geocities.com/chir_geo/atheos/index.html
Some AtheOS applications.

http://www.mobyfoo.org/atheos/
Various AtheOS software and drivers.

http://www.latech.edu/~jta001/AtheOS/index.html
Some AtheOS info.

http://www.freetype.org/
A high quality TrueType renderer used to provide antialiazed TTF font rendering in the AtheOS GUI.

http://www.sgi.com/tech/stl/
Various STL documentation.

http://www.tunes.org/Review/OSes.html
Review of an amazing number of operating systems.

http://www.stack.nl/~dimitri/doxygen/index.html
The documentation tool used to extract AtheOS API docs from the source code.

http://www.gnu.org/software/grub/
GNU GRUB The GNU boot loader

http://www.cs.utexas.edu/users/emery/hoard/
The Hoard Multiprocessor Memory Allocator

http://www.mozilla.org/bugs/
The Bug Database used on this site

http://www.yourvote.com/pci/
Some info on the PCI bus, and a Vendor/Device ID list

http://www.techfest.com/hardware/bus.htm
BUS and I/O Standards

http://www.wotsit.org/
The programmer's File Format Collection

http://www.microsoft.com/typography/fontpack/
Free TrueType fonts

http://www.funcom.com/
My employer