Bartleby Library: Great Books Online

Includes thousands of full-text poems, novels, plays, essays and other works in the public domain, as well as close to 100,000 quotations.  Resources are carefully edited to ensure accuracy of data entry.  

Bibliomania
Free Online Literature with more than 2000 classic texts.

The Literature Network

Provides a searchable online collection of over 1900 full books and 3000 short stories and poems by over 250 authors.  It also offers a quotations database and online literature forum.

New York Public Library Digital Library

Discover hundreds of thousands of prints, photographs, maps and text pages via searchable databases, online exhibitions, text sites as well as video and audio recordings.

The Online Books Page
Listing over 30,000 free books on the Web.

Wright American Fiction, 1851-1875

A collection of 19th century American fiction.  This site attempts to include every novel published in the United States from 1851 to 1875.