Other
Britannia.com: The Britannia Lexicon
A dictionary of words used in Medieval England, many of which are no longer part of the modern, everyday English we speak. This collection of terms also includes words we use now. You can learn the Medieval definitions, and compare them...
University of Calgary
University of Calgary: About Old English
Information stems from a course on Old English. Description includes what Old English actually is and how it differs from Modern English.
University of Cambridge
University of Cambridge: An Introduction to Middle English [Doc]
This essay shows how English has changed over the past 1000 years, and introduces students to reading Middle English for themselves.