Digital Library

AMS Books Online Around 30 free e-books published by the American Mathematical Society on a range of mathematical topics, including analysis, differential equations, mathematical physics, logic and number theory. In PDF format - Adobe Acrobat required.
ArchSearch A Freely available catalogue from the Council for British Archeaology which contains records of over 1 million archaeological sites and monuments. Archived data includes fieldwork projects and lab-based studies which can be downloaded and analysed off line.
Azerbaijan Free ebook Library 1151 full text books in 50 categories in Azeri , English, Farsi and other languages.
BartlebyFreely available collection of modern reference books, and historical anthologies of poetry, classic literary works, including Shakespeare, fiction and non-fiction titles.
Beazley Archive A freely available database on classical antiquities, built on the Joh Beazley collection. Includes photograph, drawings, and images of artefacts, a dictionary, books, and a searchable database. Sections on Greek art, pottery, gems, and sculpture.
Bentham Open Access  A collection of over 200 peer-reviewed open access journals in all disciplines.
BeBook Over 20000 free classic titles for download as PDF or text file.
 Bibliomania Thousands of free eBooks, poems, articles, short stories and plays. Also study guides, dictionaries, biographies, religious texts, and popular non-fiction.
Bookyards  A large free online library, containing free digital books, journals, reference 
Charles Darwin Online  This site contains everyDarwin publication as well as many of his handwritten manuscripts - more than 50,000 searchable text pages and 40,000 images.
Computer Books Highest quality computer books all of which are available for free download.
Cornell University Library  – Physics, mathematics, computer science and quantitative biology. Open access to 428,177 e-prints.
Documents for Small Business & Professional Huge collection of over 8 million public ebooks. The site includes a search engine as well to locate specific documents.
ELDIS  – A free resource of over 26,000 full text documents for development research. International development. Full text documents, resource guides, country profiles. 
eReader Resources - ipl2 Special Collection  A place where you can explore the world of eReaders and eBooks.
Free eBooks by Project Gutenberg Project Gutenberg offers over 36,000 free ebooks to download to your PC,
Kindle, Android, iOS or other portable device
 Free Book on Economics Book by Alexander Dolgin. Manifesto of the New Economy!
Free Tech Ebooks:
Getfreeebooks All the ebooks within this site are legal downloadable free ebooks.
HorrorMasters  A collections of horror short stories with a variety of themes. Thousands to browse and view.
Internet Public Library 45000+ full text works, fiction and non-fiction plus online reference works. Divided into subject collections for easy browsing but also fully searchable.
ibiblio  "Home to one of the largest 'collections of collections' on the Internet, is a conservancy of freely available information, including software, music, literature, art, history, science, politics, and cultural studies." There's a little of something for everyone here -- a good place to browse.
KatieBooks: Writer's Page  How to improve your writing: author models, a writing process, the three act structure, an edit sequence, punctuation, change & eliminate.
Katiebooks: eBook Tutorials  Hand-building ePub and Mobi ebooks without using specialized software.
NetLibrary free titles  Over 3,000 out of copyright works, including the Bible, Shakespeare, and classic works of literature and philosophy.
Nicestories.Com  Features original short stories submitted by non-professional authors on a variety of subjects, including mysteries, science fiction & fantasy, romance, and humor.
Online Books Page  It is a website that facilitates access to books that are freely readable over the Internet.
Oxford Text Archive  The Archive holds several thousand electronic texts and linguistic corpora, in a variety of languages. Includes online versions of works by individual authors, standard reference works such as the Bible and mono/bilingual dictionaries, and a range of language corpora. Searchable by author or title.
PublicLiterature.Org. Read Books Online Check out free full text and audio classic works from Public News and information is posted for readers and aspiring writers. The site features works by Jane Austen, Leo Tolstoy, Charles Dickens, Herman Melville, Leonardo da Vinci and many more.
Poetry archive  A freely available, searchable online collection of recordings of poets reading their work.  with a video introduction to the archive.
Project Gutenberg  A collection of over 13,000 freely-available eBooks. Searchable, with list of "top" authors and titles.
Read Print  Freely available collection of classic fiction, poetry, essays and non-fiction. Includes all Shakespeare plays, and biographies of authors.
Representative Poetry On-line   Large free online library of poems.
Romance Novel Excerpt  "The Last Sunset", an enduring love story by novelist Daniel Jay Paul.
Safari Books online  Digital library with more than 10,000 books, videos for technology, creative and business professionals.
Scitable A free educational research resource on genetics and evolution for teachers and students from Nature Publishing. Contains over 150 evidence-based articles. With "topic rooms", group discussion capabilities, "ask and expert" and creatable classroom space.
Shakespeare    The Complete Works of William Shakespeare, online for free.
The National Science Digital Library  - An online science library with links to high quality science, technology, engineering, and math resources for K-12 teachers, faculty, librarians, students and informal learners.
UC Press E-Books Collection, 1982-2004 (formerly eScholarship editions)     More than 500 free electronic editions of academic books published by theUniversity ofCalifornia Press, mainly in the humanities, religion, history, literature, arts and social sciences.
VIRGO (previously the Electronic Text Center)    Thousands of publicly available texts and images including history, literature, philosophy, religion, and history of science. Includes rare books, manuscripts, book illustrations and photographs from theUniversity ofVirgina Library.
World Bank: data and research    –  National and international statistics, and searchable full text of policy research reports, world development reports and indicators and other documents.
World Digital Library  –  Freely available primary materials from countries and cultures around the world, comprising images, sound recordings, journals and movies.
World Wide School Library Over 2,000 free online eBooks on a variety of subjects.