The Canterbury Tales in Old English - The complete text in its original form on a single page. - http://etext.lib.virginia.edu/cgibin/browse-mixed?id=Cha2Can&tag=public&images=images/mideng&data=/lv1/Archive/mideng-parsed
Librarius: The Canterbury Tales - HTML version in original Old English. Includes a glossary and other resources. - http://www.librarius.com/
The Canterbury Tales and Other Poems - Indexed HTML of the complete text. Includes bonus poems. - http://literatureproject.com/book/chaucer/canterbury-tales/index.htm