Mythology & Folklore 

• Aesop's Fables - Online Collection
  Fables and fairy tales by Aesop, La Fontaine, Anderson, and others.
• American Folklore.net
  Folklore and tall tales from all over the U.S.
• Bartleby.com - Bulfinch
  Greekmythology.com - Bulfinch
  Project Gutenberg - Bulfinch
  Online versions of Bulfinch's Mythology. The Project Gutenberg version may be downloaded.
• Best of Legends
  Examines the history, literature, folklore, and artistic representation of figures of popular legend such as King Arthur, D'Artagnan, Beowulf, etc.
• The Big Myth
  "A sociology textbook for the comparative study of world creation mythology." Some of the myths are only available if you buy the CD-ROM, but several of them are available free at this site.
• The Camelot Project
  "Arthurian texts, images, bibliographies, and basic information."
• Classical Mythology
  Website accompanying a college course, this site includes a glossary, links, study guides, and other materials.
• The Columbia Encyclopedia: Mythology
  From the Bartleby.com archive site, a 2001 Columbia encyclopedia article about mythology and its interpretation.
• Encyclopedia Mythica
  "This is an encyclopedia on mythology, folklore, legends, and more. It contains over 6000 definitions of gods and goddesses, supernatural beings and legendary creatures and monsters from all over the world."
• Endicott Studio Journal of Mythic Arts
  "An online journal exploring myth, folklore, fairy tales, and their use in contemporary arts." Includes both fiction and non-fiction archives.
• Folklore and Mythology Electronic Texts
  Legends from around the world "edited and/or translated by D. L. Ashliman", a retired professor of folklore.
• Folktexts: Folklore and Mythology Electronic Texts
  Collection of folklore links arranged by theme.
• The Genesis Project
  "A resource for creation myths" from the ThinkQuest Library. With summaries, discussion of parallel myths, and reference section.
• Greek Mythology: from the Iliad to the Fall of the Last Tyrant
  Brief descriptions of some of the most prominent figures in Greek mythology with a handy list of where in the Iliad and the Odyssey they may be found.
• GreekMythology.com
  Information about the Olympians, Titans, other gods and myths, and an online library of books including the Iliad and the Odyssey.
• Greek Mythology Link
  "The Greek Mythology Link is a collection of myths retold by Carlos Parada.... The mythical accounts are based exclusively on ancient sources."
• Internet Sacred Text Archive
  "This site is a freely available non-profit archive of electronic texts about religion, mythology, legends and folklore, and occult and esoteric topics."
• Hans Christian Andersen: Fairy Tales and Stories
  A list of Andersen's 168 stories with 19-century translations of many of them.
• King Arthur  Arthurian Legend Arthurian Resources Britannia: King Arthur  The Camelot Project Encyclopedia Mythica: Arthurian Legend King Arthur: A Man for the Ages Legends: King Arthur 
  
• Kalevala – The Finnish National Epic
  Information, history, and the tales of the Kavevala.
• Mything Links
  An "annotated, illustrated collection of worldwide links to mythologies, fairy tales & folklore, sacred arts & sacred traditions."
• MythNET
  Information about classical gods and heroes, with separate sections for different stories and themes.
• Mythography
  Descriptions of mythical figures from Greek, Roman, and Celtic mythology. With artwork, forums, bibliography, and search ability.
• Stories of the Dreaming
  Text and multimedia presentations of 20 Australian Aborigine stories.
• SurLaLune Fairy Tales
  "A portal to the realm of fairy tale and folklore studies featuring 26 annotated fairy tales and over 1,000 illustrations."
• Transformations Database
  "Transformations is a searchable database of works by contemporary writers who use traditional texts for their subject matter; in particular, the collection focuses on works based on mythology, the Bible, fairy tales, and Shakespeare."
• Ty'r Beirdd: The House of Bards
  "This is an attempt to collect as many possible medieval texts produced in the "Celtic" countries, or on Celtic themes."
• World Myths and Legends in Art
  Discusses what myth is, and offers sections of art by theme and art by culture.