A Brief Glossary of the Medieval and Reformation Church by R. Scott Clark, D. Phil. Reformation Europe Links to Reformation era Source material sites and topics. Lots of graphics and information. For tracking down and purchasing used or out of print books, I recommend highly Advanced Book Exchange . Besides Alta Vista , I found Google and Fast Search have helped me find a lot of useful material and images.
Searches using varient and foriegn spellings are also very helpful.