Here some interesting medieval sites I found over the last week or so. It is difficult finding information on the early Germans, the Italians/Sicilians and Spanish.
http://users.wpi.edu/~dev_alac/iqp/indepth/index.html
http://www.getmedievalonline.com/knights.html
http://orb.rhodes.edu/non_spec/missteps/Ch3.html
http://history.evansville.net/medieval.html#Warfare
http://www.castlewales.com/warfare.html
http://myweb.tiscali.co.uk/matthaywo...eudal%20Forces
http://www.historyguide.org/ancient/lecture21b.html
http://members.tripod.com/Preachan/knights1.html
http://www.heraldica.org/topics/orders/knights.htm