Washington State University
Washington State University: Archetypal Criticism
This site from Washington State University a professor explains archetypal criticism. Includes references.
Victorian Web
The Victorian Web: Dandy in the Picture of Dorian Gray
Victorian Web provides a site that covers the the study of archetypes in Oscar Wilde's fiction. Gives good examples of this kind of criticism. Very accessible to students, with a short list of references at the end.