10 Places to Start:
Project Gutenberg, as the oldest producer of ebooks on the Internet, provides access to 16,000 titles.
Christian Classics Ethereal Library
This is a theological library of online texts of the Christian tradition, compiled by a researcher at Calvin College.
Internet Public Library
From the University of Michigan School of Information, the IPL contains a wide range and variety of websites, with access to Subject Collections, Ready Reference, and magazines and newspapers.
Public Library of Science
The PloS provides open access to worldwide scientific and medical research, and includes its own PloS journals.
Best Information on the Net
This site, from the O'Keefe Library at St. Ambrose University, provides a selective directory of Internet resources, focusing on ethical and social service subjects, and includes sections on "Hot Paper Topics" and "Resources by Major."
INFOMINE: Scholarly Internet Resource Collections
Originating from the University of California at Riverside, the site has access to important educational and research tools, with over100,000 links.
Bartleby.com: Great Books Online
This is a literary site with free access to selected ebooks of fiction, non-fiction, and poetry, as well as to reference works.
From the Library of Congress special collections, this site provides full-text access to primary and archival materials relating to United States history and culture.
Statistical Resources on the Web
Compiled by the Documents Center at the University of Michigan Library, the site has hundreds of statistical files, mainly from government sources, on such topics as demographics, consumers, education, foreign trade, health, and science.
NYPL Digital Gallery
This New York Public Library site provides access to digital collections of primary sources and printed materials, including books, photographs, manuscripts, and maps.