General Digital Libraries
The digital libraries on this list hold the most comprehensive collection of library materials available for free online. Some of them are so old that they actually predate the web.
- Universal Digital Library - The million book collection.
- Project Gutenberg - More than 20,000 ebooks, audio books, CDs and DVDs.
- Bartleby - Huge collection of reference, verse, fiction and nonfiction books.
- ibiblio - Library and digital archive offering ebooks, academic papers, software, music, and streaming radio.
- Google Books - More than 100,000 books and a fully searchable database.
- Live Search Books - Thousands of books and a fully searchable database.
- World Digital Library - Source for manuscripts, rare books, music, films, maps, prints and more in multilingual format.
- ERIC - World's largest library of digital education literature.
- Bibliovault - Digital files for more than 12,500 books.
- Internet Public Library - Books, magazines, newspapers, reference materials and more.
University Sponsored Digital Libraries
Many of the nation's top colleges and universities host their own digital library collections. All of the libraries shown below can be accessed by students and non-students alike.
- Online Books - More than 30,000 books from the University of Pennsylvania.
- The Perseus Digital Library - Tufts University collection of classics and humanities resources.
- Columbia University Libraries Broad range of text, audio and images from Columbia University.
- Yale University Library - Wide range of books, abstracts, films, images and more.
- Brigham Young University Digital Collection - Text, scholarly periodicals, theses and dissertations, audio and images from Brigham Young.
International Digital Libraries
Digital libraries are a worldwide thing. Here are three of the best international collections:
- International Children's Digital Library - Fabulous collection of children's books (historic and modern.)
- The European Library - Audio and printed music, children's literature, academic papers, and much more.
- National Library of Australia - e-journals, subject guides, pictures and other digital collections.
Honorable Mentions
The following digital libraries also offer excellent materials.
- Library of Congress - Millions of books, manuscripts, maps, photographs, prints, and drawings
- Medical Student - Digital library for medical students.