Other
Unesco: Carcassonnne
A very complete and very user-friendly website that includes a lot of historical information (about the Cathari, the art of war in the Middle Ages, the activities in the Medieval city, etc.)
Philosophy Pages
Philosophy Pages: Niccolo Machiavelli (1469 1527)
This short biography of Machiavelli includes a color portrait, links to more information about important ideas, and recommended primary and secondary sources.