Quote Originally Posted by Pannonian
Time and locale. If you want a good answer, it'll probably go into social structures and economics as well. Look in google groups in soc.history.medieval and you'll find some decent threads on the subject. Eg. one discussion of Hastings went into a discussion of the geography, the strategy of both commanders leading to and entering the battle, logistics, timing of sunset, etc. From that thread, I learnt more about why each side did what they did than I ever did at school.
pannonian I googled this site but I dont see much sites that match the quality of the one you described, so could you post a link please?

or is this it? http://faqs.org/faqs/by-newsgroup/so....medieval.html