Atlas games - Ars Magica  
   Come to a land of adventure and mystery, of falling empires and rising nations, of legendary creatures and incredible myths. This is Ars Magica's Mythic Europe, where the power of magic is real and exists alongside historical figures and locations. Storie
   http://www.atlas-games.com/arm_index.html

Bifrost Ars Magica Pages  
   Details of a saga set in the Stonehenge tribunal, together with descriptions of covenants, libraries and magi across Mythic Europe. Also includes some new spells, rules and libraries, as well as a brief description of an Ars Magica - World of Greyhawk cro
   http://www.bifrost.demon.co.uk/games/arsmagica

Project Redcap - The Crossroads of the Order  
   Features an Ars Magica FAQ, mailing lists, resources, and a large link collection for multiple languages.
   http://redcap.org/

Cliffheart Covenant  
   A nicely laid out site about Ars Magica that was originally done in Italian, but has now been translated to English.
   http://www.arsmagica.it/Cliffheart/index-en.htm

Hermes' Portal  
   A fanzine about the game.
   http://perso.wanadoo.fr/styren/hermesportal/hermes.htm

Rabenstein Covenant  
   Offers characters, maps of the covenant, house rules, summary of the saga, and historical background.
   http://www.unc.edu/~murphy/rabenstein/index2.html

Malinbois Home Page  
   Includes characters, maps of The Covenant and its library, and rules.
   http://www.durenmar.de/malinbois/

Insula Maledictus  
   AnProvides characters, relations, stories, history, spells, magical items, letters, essays and in-game and off-game material.
   http://koti.mbnet.fi/insula/

Secretum Secretorum  
   Background for the game, contains information from a text translated from Arabic in the middle of the twelfth century.
   http://www.granta.demon.co.uk/arsm/jg/index.html