There are many places one can go to download digitized books, esp. if you are interested in books that are out of copyright. This document focuses on a range of sites available.
Web-based library of digital books, textbooks and periodicals available to people with print disabilities. Resources available 24/7. Content and services FREE to all U.S. students who qualify (Office of Special Education funding). Resources include: Textbooks, Teacher Recommended Reading, Special Collections (New York Times Best Sellers, Caldecott Winners, Newberry Winners, Young Reader's Choice, Spanish books, Chapter books from Scholastic, technical books from O'Reilly Media, Periodicals. Training/Tools available for educators