Elfwood Fantasy Art Gallery:
http://www.elfwood.com/elfwood.html
This site includes a searchable engine by keyword of thousands of fantasy and mythological creatures.
Gods, Goddesses and Myths: The Bestiary
http://www.eliki.com/ancient/myth/bestiary/content.htm
Provides a history of mythological creatures such as the centaur, Pegasus, phoenix, mermaids, etc. It has great pictures of the creatures as represented in the arts.
Myth and Legends. From ancient Times to the age of Space
http://pibweb.it.nwu.edu/~pib/myth.htm
Great list of resources.
A Wonder-Book for Boys and Girls, by Nathaniel Hawthorne.
http://eldred.ne.mediaone.net/nh/wbpf.htmlhttp://eldred.ne.mediaone.net/nh/wbpf.html
A collection of classical myths written for children. The myths have been compiled into this wonderful collection. Each story has an introduction which ties all the stories from beginning to end.
http://www.elfwood.com/lothlorien/artists/marie/phoenix.gif
http://www.elfwood.com/lothlorien/artists/bing/dragon_and_phoenix.jpg
American Indian Animal Brides and Bridegrooms
http://www.pitt.edu/~dash/animalindian.html#tsimshianbear
A collection of Native American Indians stories with the theme of intermarriage among animals and human beings.