Creating a fantasy world? Running a medieval fantasy RPG? Here’s a great article on Medieval Demographics, based on the Paris tax lists of 1292 and other original sources.
For the more craft oriented among you, here are a few videos to guide you through making some plasticine modeling clay figures for the Crusades.
Surprise, surprise. Hollywood has it wrong.
Here’s a documentary showing how historical swordfights really happened.
Terrain Thralls has an illustrated tutorial on making a half-timbered, two story roadhouse. The end result is beautiful, and would be useful in a wide variety of settings.
The Krigsspil site has a huge number of medieval and renaissance flags available for downloading.