2 links
Atlas games - Ars Magica
atlas-games.com
Publisher's site. "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, …
Project Redcap - The Crossroads of the Order
redcap.org
Features an Ars Magica FAQ, mailing lists, resources, and a large link collection for multiple languages.