Internet Medieval Sourcebook
This is an excellent collection of public domain and copy-permitted historical texts, part of the Internet History Sourcebooks Project. It includes translations of many original sources.
Labyrinth: Resources for Medieval Studies
Georgetown University supports this wide-ranging site providing free, organized access to electronic resources in medieval studies, with connections to databases, texts, images, services and organizations on other servers around the world.
Richard III Society, American Branc
This society is dedicated to a re-evaluation of the life and reign of King Richard III. Its website provides extensive links to the king and to the War of the Roses, plus a Web Links gateway to numerous sites dealing with medieval history.