Includes 80,000+ title from both commercial and non-commercial publishers, universities, and private sites. Topics from the Ancient Agriculture to Space Flight. Includes 2000+ dictionaries, encyclopedias, thesauri, glossaries, bibliographies, timelines, chronologies, and literary histories.

From Open Culture; access free science fiction classics such as Huxley, Orwell, Asimov, Gaiman and more. Many are also available in audio.

The Unversity of Pennsylvania Library provides a searchable index with 35,000+ free books on the WWW.

Open Library is a catalog of over 20 million edition records online with access to 1.7 million scanned versions of books. It also links to sources like WorldCat (links to library holdings) and Amazon to get you as close to the actual document you're looking for as possible.

From the British Library, this 15 book collection electronically mimics the look of each book, even turning pages while reading. Adobe Shockwave is required.

From the University of California Press. About 500 of the 2,000 titles are available to the public. Topics include art, science, history, music, religion, and fiction.

From Bookshare.org this is free for all U.S. students with qualifying disabilities (membership fee for others). It provides 90,000 digital books, textbooks, teacher-recommended reading, periodicals and assistive technology tools for readers with print disabilities.

DAISY is an acronym for Digital Accessible Information SYstem. "1 million+ books in the Internet Archive’s library for print disabled, are scanned from hard copy books then digitized into DAISY — a specialized format used by blind or other persons with disabilities, for easy navigation. Files are downloaded to devices that translate the text and read the books aloud for the user to enjoy."

Some Protected DAISY files may not be available as print.