Leading retailer with extensive catalog of book details, reader reviews, and full-text search.
  • Audible
    Premier online audiobook retailer with affordable subscription options.
  • Booknotes
    Online archive for C-SPAN's award-winning author interview program. 800+ interviews.
  • CliffsNotes
    Free literature notes and study guides covering all academic subject areas.
  • Google Books
    Search the full text of books. Read books online.
  • Library of Congress
    Largest library in the world with a collection of more than 120 million items.
  • LibriVox
    Free audio files for books from the public domain read by volunteers.
  • New York Public Library
    One of the largest public libraries in the United States. Collection of 51 million items.
  • Open Library
    One web page for every book ever published. Currently indexes 24 million books.
  • Project Gutenberg
    30,000 free ebooks from the public domain to read on your PC, iPhone, Kindle, etc.
  • The British Library
    UK's leading research library. Catalog of 15 million books, newspapers, and journals. - Also see: Online Gallery
  • Wikibooks
    Free library of educational textbooks that anyone can edit.
  • WorldCat
    Indexes collections from more than 10,000 libraries.

Social Bookshelves

  • GoodReads
    Organize and share book lists. Receive recommendations.
  • LibraryThing
    Share book lists and receive recommendations from other book lovers.