The Battle Cat's Marathon Page
- Find original Marathon maps, films, Forge tips, and related humor here.
- http://www.webwonks.org/Marathon/Marathon.html

Marathon's Story
- Houses the full text of the game series with discussion and speculation.
- http://marathon.bungie.org/story/

10/5 Mapmakers
- Offering map downloads and information on the OBED Marathon level editor.
- http://www.numbera.com/105/

GameSpot
- Chris Hudak review [8.2/10] includes screenshots and downloads. "A distance runner, and with all its perks and goodies should more than tide over the 3-D shooter fanatic."
- http://www.gamespot.com/pc/action/marathon2/review.html

Marathon Infinity
- Official site
- http://www.bungie.com/products/infinity/infinity.htm

Marathon Open Source
- Microsoft's own Open Source Initiative, using the GPL'ed Marathon 2 source code, called Aleph One.
- http://source.bungie.org/

Marathon Arena
- A total conversion for Quake 3 Arena in the spirit of Marathon Infinity.
- http://ma.bungie.org/

Scott's Addictions
- Review.
- http://www.tiktok.com/pages/game_addictions/97.02.01_marathon.html