GameFAQs
- Contains FAQ covering changes from previous versions, DEAs, unrest, Antaran Xs, and politics.
- http://www.gamefaqs.com/computer/doswin/game/19577.html

Inside Mac Games: Master of Orion III Beginner's Guide
- Introductory strategy guide by Scott Winn. Covers setup, colonization, and technology.
- http://www.insidemacgames.com/features/view.php?ID=225&Page=1

The Master of Orion 3 Guardian
- Includes news, screenshots, previews, features, downloads, forum, and interviews.
- http://www.moo3.at/

The Orion Sector
- Contains news, strategy guides, multiplayer information, and forums.
- http://www.orionsector.com/

Apolyton.net: Master Of Orion III
- News, screenshot archives, interviews, forum and feature information.
- http://apolyton.net/moo3

IGN
- Previews, and news.
- http://pc.ign.com/objects/014/014808.html

Master of Orion III
- Official site features fan fiction, forum, and FAQ.
- http://moo3.quicksilver.com/