The Online Books Page provides pointers to over 25,000 free books online. Hosted by the University of Pennsylvania Library, search by title, author, subject, serial, and new listings. This site also contains the latest news about new online books, prize winners, books in progress, and more.
onlinebooks.library.upenn.edu/

Alex Catalogue of Electronic Text is a user-friendly database containing over 14,000 "classic" public domain documents from American and English literature as well as western philosophy.
www.infomotions.com/alex/

Aesop's Fables contains over 650 searchable fables including Real Audio narrations and classical images.
www.aesopfables.com/

Tales Selected by the Brothers Grimm provides all of Grimm's fairy tales in one convenient place.
www.ucs.mun.ca/~wbarker/fairies/grimm/

Early Modern Literary Studies, a referreed journal, provides a site containing an extensive list of links to classics, and 15th through 17th century online literature sites.
www.shu.ac.uk/emls/emlsetxt.html