An invaluable service run by Snicker Furfoot.
Snicker took a standard US map and dropped some dots on it, made them all link together and produced one of the longest lived and most invaluable amtgard resources around, the Amtgard Atlas.
It was once the single repository of information on what Amtgard groups are out there, when and where they meet, who to contact, and so forth. It is organized by state and by kingdom. Now the Amtgard Atlas has been supplanted by the ORK Atlas.