Doom Wiki:Source material

CC-BY-SA resources

 * This project, the Doom Wiki (http://doomwiki.org/)
 * The SLADE wiki (http://slade-editor.wikia.com/)

Wikipedia also has a fair amount of Doom coverage; see, for example,. Note that Wikipedia articles generally include extensive information or wording that is irrelevant in this context.

GFDL resources

 * The ZDoom documentation project (http://zdoom.org/wiki/)
 * The Chocolate Doom wiki (http://www.chocolate-doom.org/)
 * The Doomsday Engine wiki (http://dengine.net/dew/)
 * The Doom Legacy wiki (http://legacywiki.net/)
 * The Eternity wiki (http://eternity.youfailit.net/)
 * The DoomRL wiki (http://doom.chaosforge.org/wiki/)

General source material

 * The "Official" Doom FAQ at gamers.org
 * ClassicDOOM.com
 * The Unofficial Doom Specs:
 * v1.666 (predates source release)
 * 2008 revision


 * The Page of Doom, hosted by Doomworld.com
 * Lee Killough's Doom memorabilia
 * The Skulltag wiki (http://wiki.skulltag.net/)
 * The Odamex wiki (http://odamex.net/wiki/)
 * The Vavoom wiki (http://www.vavoom-engine.com/wiki/)
 * The ReMooD wiki (http://sourceforge.net/apps/mediawiki/remood/)