Includes the Million Book Project and Project Gutenberg. Searchable by keyword.
One of the oldest and most famous online book collections
In the Advanced search for Google Books, you can limit to Full View Only for open access books.
Over 5000 public domain books from the Questia subscription library company. Most of these are Project Gutenberg texts.
Works printed in English, 1477 - 1799.
From the University of California Press. Some are public, others are for the UC community only. A Public Title List is available of only publicly accessible books.
Specifically peer-reviewed academic books. (Note: some subjects in the subject browse may not have books.)
Lots and lots of books. This site covers most of the large book repositories listed below, including the Internet Archive, Project Gutenberg, Google Books, and reports and books from the federal government.
