Visual Thesaurus - The free tool lets you visually see the relationships between words. There is also a paid version with more features. Ask a librarian for the password.
http://www.visualthesaurus.com

Bartleby.com - Free online books including classics, non-fiction, and reference.
http://www.bartleby.com

Bullfinch’s Mythology - Mythological stories of ancient Roman Gods and heroes.
http://www.sacred-texts.com/cla/bulf/index.htm

Online Literary Criticism Collection - contains critical and biographical websites about authors and their works that can be browsed by author, by title, or by nationality and literary period.
http://www.ipl.org/div/litcrit/
The English Server - a growing online community where writers, artists, editors and scholars publish works as open archives, available free of charge to readers. It contains literature on a wide variety of subjects.
http://eserver.org/

The Internet Classics Archive - Contains a list of 441 works of ancient literature.
http://classics.mit.edu/
African American Women Writers of the 19th Century - contains a variety of information on a number of African women writers of the 19th century.
http://digital.nypl.org/schomburg/writers_aa19/

Shakespeare

The Complete Works of William Shakespeare - This site contains exactly what it says. It is a wonderful resource if you forgot your book at school.
http://shakespeare.mit.edu/works.html
Elizabethan England - This site tells all about Elizabethan England from historical figures to the everyday lives of those living at the time.
http://www.springfield.k12.il.us/schools/springfield/eliz/elizabethanengland.html