Descent Series

360º Action
Includes levels, and skins.
http://www.descent.person.dk/defender.htm

Descent BB: the Community Forum
The Descent Bulletin
http://www.descentbb.net

Descent Maximum
Consumer reviews.
http://www.epinions.com/game-Titles-Consoles-SonyPlaystation-All-Descent_Maximum

Descentworld
Includes levels, pictures and related links.
http://www.geocities.com/descentworld/

Ender's Book'em Lookup Page
An online database of Kali Serial Numbers.
http://www.brug.org/bookem/

Fonts
TrueType versions.
http://descent2.com/goodies/fonts/index.html

Kahn
A multiplayer gaming service similar to Kali, but uses IRC as its chat medium.
http://descent2.com/kahn/

Lars Christensen
Game information and a small collection of levels for Descent 1 and 2.
http://hjem.get2net.dk/dittehus/lac/descent1.htm

MacDescent3dfx
3dfx and OpenGL accelerated versions of Descent 1 and 2 for Macintosh, by Duane Johnson.
http://descent2.com/mac/

Planet Descent
Includes information for all three games plus forums and files.
http://www.planetdescent.com/