Copyright

More than 25,000 listings for free books and public domain books. Also includes a great listing of public domain websites and a list of the public domain books in the Google Project.

Contains over 50,000 free ebooks, many of which are in the public domain.

Internet Archive is a non-profit library of millions of free books, movies, software, music, and more. Many of their resources are in the public domain.

Also includes other historic primary sources.

Maintained by Columbia University, Project Bartleby contains online reference materials, verse, fiction and non-fiction, most in the public domain.

The Universal Library Project, sometimes called the Million Books Project, was pioneered by Jaime Carbonell, Raj Reddy, Michael Shamos, Gloriana St Clair, and Robert Thibadeau of Carnegie Mellon University. The Governments of India, China, and Egypt are helping fund this effort through scanning facilities and personnel.

Full text of public domain books and snippets or samples from other titles.