The Labyrinth, supported and hosted by Georgetown University is a great source for links to study the Medieval Studies.
Categories listed are: Archaeology, Architecture, Armor, Art, Arthurian Studies, Astronomy, Byzantine, Cartography, Chivalry, Church History, Coins, Cookery, Cosmology, Crusades, Decorative Arts, Drama, Education, English-Middle, English-Old, Ethics, Feudalism, French-Old, Gender and Sexuality, Geography, German- Middle High, Islam, Italian, Judaism, Latin, Magic and Alchemy, Manuscripts, Mathematics, Medicine, Music, Old Norse and more.
If you have an interest in Medieval times, you should check it out here: http://labyrinth.georgetown.edu/
