A good place to start gathering information about Medieval History
Atlas of Medieval Europe REF CB 351.M293 1983
Dictionary of the Middle Ages (13 vol.) REF D 114.D5 1982
The Crusades, An Encyclopedia (4 vol.) REF D 155.C78 2006
Medieval Ireland, An Encyclopedia REF DA 933.M43 2005
Medieval Germany, An Encyclopedia REF DD 157.M43 2001
The Oxford Dictionary of Byzantium (3 vol.) REF DF 521.O93 1991
The Greenwood Encyclopedia of Daily Life, vol 2 - The Medieval World REF GT 31.G74 2004 v.2
Medieval Science, Technology and Medicine, an Encyclopedia REF Q 124.97.M43 2005
RefWorks -- an online research management, writing and collaboration tool -- is designed to help researchers easily gather, manage, store and share all types of information, as well as generate citations and bibliographies.
Set up an account using your UAA/APU user ID and Password, and start organizing and sharing your research.
Internet Medieval Sourcebook (Fordham University) http://www.fordham.edu/halsall/sbook.html
Monasticism in Medieval Christianity http://www.metmuseum.org/TOAH/HD/mona/hd_mona.htm
The Crusades 1095-1291 http://www.metmuseum.org/toah/hd/crus/hd_crus.htm
Middle Ages Web Resources http://www.themiddleages.net/
Medieval Civilization General Resources http://www.archaeolink.com/medieval_civilization_general_re.htm