Questia.com
Questia is the world's largest online library! Choose from thousands of popular research topics with librarian-selected books and journal articles from online library. 44
Wikibooks Free textbooks and manuals
http://en.wikibooks.org/wiki/Main_PageWikisource Free source documents
http://en.wikisource.org/wiki/Main_PageWikiquote Collection of quotations
http://en.wikiquote.org/wiki/Main_PageAmerican Memory from the Library of Congress.
Primary source and archival materials relating to American culture and history.loc.gov
Library of Congress. libraryofcongressThe Library of Congress Online Catalog
Over 12 million bibliographic records representing books, serials, computer files, manuscripts, cartographic materials, music, sound recordings, and visual materials.
The Library of Congress Online CatalogU.S. National Library of Medicine (NLM)
The world's largest medical library. Health sciences, chemistry, physics, botany and zoology.
5 million items - books, journals, technical reports, manuscripts, microfilms, photographs and images.The Internet Public Library
Online public library for the Internet community. Includes directories of online texts, newspapers, magazines, reference materials; plus special sections for youth and teens.Libweb - Library WWW Servers
A global directory of library home pages. 6100+ pages from libraries in over 100 countries.
The National Agricultural Library Homepage (NAL)
The American Library Association (ALA)
The New York Public Library
Seattle Public LibraryOCLC Online Computer Library Center
Nonprofit, membership, computer library service and research organization whose computer network and services link thousands of libraries worldwide.LibrarySpot.com
Encyclopedias, maps, online libraries, quotations, dictionaries and reference resources, newspapers and more.Awesome Library - K-12 Education Directory
17,000 carefully reviewed K-12 education resources, including the top 5 percent for teachers, students, parents, and librarians.WWW Virtual Library
Directory of the Virtual Libraries.Cornell University Library - CUL Gateway
SJCPL's List of Public Libraries with WWW Services
University of Houston Libraries
The Internet Public Library
Online public library for the Internet community. Includes directories of online texts, newspapers, magazines, reference materials; plus special sections for youth and teens.The California State Library
California Research Bureau papers online, LDS publications,
the California Library Directory - local libraries.PublicLibraries.com
Guide to Public Libraries in your area. National Libraries of the World.British Library
British Library Public Catalogue
The British Library Newspaper LibraryToronto Public Library
Edmonton Public Library
Calgary Public Library