Alex Catalogue of Electronic Texts
http://www.infomotions.com/alex
Public domain texts in American and English literature and Western philosophy.

Bibliomania
http://www.bibliomania.com
Over 8,000 classic texts of world literature. The study guides offered here should be used as a help or discussion guide only, and never as a substitute for reading the actual text.

Complete Works of Shakespeare
http://the-tech.mit.edu/Shakespeare/
Full texts of Shakespeare's plays and a link to scholarly resources on the Web.

The EServer
http://www.eserver.org
The Eserver (originally called the English Server) publishes classic texts in the arts and humanities (art, architecture, drama, fiction, poetry, history, political theory, cultural studies, philosophy, women's studies, and music).

Literature.org Online Library of Literature
http://www.literature.org
Classic texts in HTML format. Click on "Contents" and select an author.

The Online Books Page
http://digital.library.upenn.edu/books
This section of the University of Pennsylvania Library is an index of online books available around the Web. Browse by author, title, or subject. Also includes links to serial archives.

Project Bartleby
http://www.bartleby.com
Free access to thousands of public domain works, from Sophocles to H.G. Wells, including lots of poetry. Also offers complete reference books.

Project Gutenberg
http://promo.net/pg
The oldest repository of online public domain texts. The site is searchable, with full bibliographic data returned. Titles are downloadable in ASCII format.