Virtual References: E Books
Digital Library of India: Digital Library of India has currently 550,617 books with 191,677,823 pages (191.657 Million approx.) in Portable Document Format (PDF). This project is funded by the Department of Electronics and Information Technology (DeitY), The Ministry of Communication and Information Technology (MCIT), Govt. of India.
Internet Archive: The Internet Archive and Open Library offers over 10,000,000 fully accessible books and texts. There is also a collection of 300,000 modern eBooks that may be borrowed or downloaded by the print-disabled at OpenLibrary.org.
The National Academies Press: The National Academies Press (NAP) was created by the National Academy of Sciences to publish the reports of the National Academies of Sciences, Engineering and Medicine, operating under a charter granted by the Congress of the United States. The NAP publishes more than 200 books a year on a wide range of topics in science, engineering, and medicine, providing authoritative information on important matters in science and health policy. The institutions served by the NAP are unique in their ability to attract leading experts in many fields to join panels and committees charged with providing policy advice on some of the nationís most pressing scientific, technical, and health-related issues.
The Online Books Page: The Online Books Page is a website that facilitates access to books that are freely readable over the Internet. It also aims to encourage the development of such online books, for the benefit and edification of all.
Major parts of the site include:
Project Gutenberg: Project Gutenberg offers over 50,000 free ebooks: choose among free epub books, free kindle books, download them or read them online.