XL Repository
- Includes downloads for Quake and Quake II.
- http://www.modempool.com/pault

Retinal's Broken Machine
- Home of Quake and Q2 mapper Retinal, author of the Broken series.
- http://retinal.fov120.com/

QBrt's Quake Levels
- Includes downloads and how to use them.
- http://www.xs4all.nl/~brt/quake/index.html

Gom Jabbar's Hideout
- Includes downloads, map information and news.
- http://www.gomjabbar.de/

Geniacs Quake Map Played List
- One line reviews of many Quake maps.
- http://www.geniac.net/quake.htm

QuArK
- Editor for games based on or similar to iD's series of Quake games. Supports 21 distinct games and their mods. Integrates a map editor, archive editors and texture management.
- http://quark.planetquake.gamespy.com

Opiate's Texture Warehouse
- Standard and custom textures for Quake and Quake2, along with texture creation and manipulation tools.
- http://hosted.planetquake.gamespy.com/warehouse/

The Forge
- Tutorial, tips, tricks, and general information on creating maps using Worldcraft level editor.
- http://hosted.planetquake.gamespy.com/worldcraft/index2.shtm

BSP Headquarters
- Home of the BSP Quake Editor
- http://www.bspquakeeditor.com

Quest
- A 3d map editor for the series.
- http://quest-ed.sourceforge.net/

Quake Editing Utilities
- Various downloadable Quake utilities.
- http://www.montefiore.ulg.ac.be/~quinet/games/QEU/

Quark
- Quake editor for Quake1, Quake2 and Hexen2: levels, QuakeC, maps, models, sounds.
- http://www.planetquake.com/quark/