Dr. E.L. Skip Knox teaches history at Boise State University. His online courses have dedicated websites with his lectures and plenty of supporting material. There are five, History of Western Civilization, covering the wide sweep of European history from ancient Athens to Copernicus, The Crusades, Europe in the Late Middle Ages, focusing on the the Renaissance, and Europe in the Age of Reformation. You can also go on a Virtual Pilgrimage to the Holy Land in medieval times. Dr. Knox has written extensively about online teaching including a lecture called The Rewards of Teaching On-Line where he explains his methods and shares his experiences.
posted by Kattullus on Nov 23, 2009 - 7 comments

Columbia University's Digital Scriptorium is a database of high quality scans from medieval and renaissance manuscripts. The highlights section alone is breathtaking, but you can search and browse through over 5000 manuscripts and almost 25000 individual images.
posted by Kattullus on May 3, 2008 - 15 comments

A few examples of high-quality re-creations of medieval armor. Much of this is created using historical techniques (youtube,) by men (slightly NSFW) who can only be called masters. But it ain't cheap. [more inside]
posted by agentofselection on Dec 7, 2007 - 11 comments

Medieval & Renaissance Manuscript Images: Corsair is a well documented online image repository of the Morgan Pierpont Library. There are 58 manuscripts with over 7,000 images ranging from the 9th to the 16th century. Sample image page. Sample search results. Research information.
posted by peacay on Sep 3, 2005 - 8 comments

Gode Cookery: Medieval & Renaissance food & cookery, and more.
posted by hama7 on May 7, 2004 - 8 comments

Musica Antiqua: A Guide to Medieval and Renaissance Instruments. Complete with both .wav and .mp3 samples.
posted by Ufez Jones on Mar 12, 2004 - 9 comments