AtheOS

The AtheOS Info Site
It lists various user and developer questions and answers about AtheOS in FAQ format. Specifically, it covers how to set a view to use a fixed font, how to compile the sources from scratch, and how to handle graphics. The AtheOS Info Site also discusses particulars of the AtheOS API and Unicode support.
http://atheos.s5.com/

Cosmoe Operating System
Windowing system for Linux based on AtheOS, ported by Bill Hayden. Uses AtheOS GUI system atop Linux kernel, but aims to become an independent OS, and to fully support BeOS API and have source compatibility with BeOS programs.
http://www.cosmoe.com/

Myelin: Notes on AtheOS
Has a few scripts and software ports that work with AtheOS, and notes on inner workings of AppServer and startup sequence, possibly of interest to some developers.
http://www.myelin.co.nz/atheos/

SourceForge: AtheOS
The official developers' mailing list for AtheOS is where most users of AtheOS discuss programming and news and post their questions concerning development.
http://sourceforge.net/projects/atheos/

Wikipedia: AtheOS
Encyclopedia article, with links to many topics.
http://en.wikipedia.org/wiki/AtheOS

AtheOS Wizard Kurt Skauen Tells All
Interview by many questioners, with many forum comments. Slashdot. <small>(September 7, 2001)</small>
http://developers.slashdot.org/article.pl?sid=01/09/07/1727254

Interview with the AtheOS Creator, Kurt Skauen
Asks Skauen's views on binary compatibility in future versions of AtheOS, multithreading, and the future of his OS in general. [OSNews] <small>(August 27, 2001)</small>
http://www.osnews.com/story/66

Ask AtheOS Creator Kurt Skauen about His Creature
Brief story, with many forum comments. Slashdot. <small>(August 23, 2001)</small>
http://slashdot.org/article.pl?sid=01/08/23/1856221