Cornell Open: Cornell University Press Open eBooks collection. Set up an account in order to download ebooks.
HathiTrust Digital Library: A partnership of academic and research institutions, offering a collection of millions of titles digitized from libraries around the world.
Lever Press: As a press aligned with the ethos and mission of liberal arts colleges, we seek out, identify, evaluate, and advocate for transformative scholarship that spurs creative dialogue within and between traditional fields of inquiry, emphasizes disciplinary innovation, draws upon new models of collaborative research, and strives to reach the broadest audience possible.
Project Gutenberg: Over 61,000 digitized books available for download. Most books are in the public domain, no longer protected by U.S. copyright law.
Open Library: A broad range of digitized books available to checkout from the Internet Archive.