The Matrix RPG : Age of Affliction
- A forum-based roleplaying game.
- http://tmaffliction.proboards77.com/

I Took The Red Pill
- Discussion forums and FAQs for the two sequels.
- http://www.i-took-the-red-pill.com/

Matrix Mania
- Discussion board with forums for a variety of subjects both within and without the series. Also includes articles on the trilogy, fan fiction, and links.
- http://www.matrixmania.com/

The Vision
- Message board and role-playing game.
- http://agentshadow.hyperboards.com/

M4TR1X Mainframe Hacker Challenges
- Message board with challenges and a ranking system.
- http://m4tr1x.wsn.at

There is No Spoon
- Community dedicated to exploring the spiritual and philosophical dimensions of the series.
- http://www.thereisnospoon.com/

The Rabbit Hole
- Message board with forums for the movies, the anime, and the games. Also includes general-interest forums and links.
- http://rabbithole.hyperboards.com/