ARGUS CLEARINGHOUSE  - Virtual academic library organized into categories that closely parallel those on campus: arts and humanities, business, social sciences, and science and mathematics.  Material and organization useful for anyone doing research.
CALIFORNIA DIGITAL LIBRARY - An additional "co-library" of the University of California campuses, with a focus on digital materials and services.  
CATALOG OF DIGITIZED MEDIEVAL MANUSCRIPTS - site was designed to enable users to find fully digitized manuscripts currently available on the web.
BUBL - catalogue of selected Internet resources covering all academic subject areas and catalogued according to DDC (Dewey Decimal Classification).
DIGITAL LIBRARIAN - "a librarian's choice of the best of the Web".
HATHITRUST - Shared repository (2 dozen large research libraries) of digital collections, including scanned books, articles, special collections and a range of "born digital" materials.
INFOMIME - virtual library of scholarly Internet resources relevant to faculty, students, and research staff at the university level maintained by the Library of the University of California, Riverside.
INTERNET PUBLIC LIBRARY - The first public library of and for the Internet community.  Limited number of searchable, librarian reviewed,  internet delivered sources. 
LIBRARIANS INDEX - well-organized point of access for reliable, trustworthy, librarian-selected Internet resources.
LIBRARIANS INDEX TO THE INTERNET FOR WASHINGTON STATE - Search the wealth of links on subjects, including Arts, History, Science and Philosophy, with a Washington State focus and sites selected in part by Washington State librarians and library employees.
LIBRARYSPOT - Links to numerous online libraries, reference materials, online books, periodicals, poetry, speeches, literary criticism, and quotations
LIBRIVOX - provides free audiobooks from the public domain.
MECKLENBURG COUNTY (PLCMC) - Pay $25.00 per year (non-resident card fee) and gain access to a variety of databases you can access via the Internet.
MEL - Michigan Electronic Library - Thousands of links to high quality sites selected by a team of librarian subject specialists.
OPEN LIBRARY - "The idea is to create a single page on the web for every book that has ever been published; an enormous, searchable catalogue of information about millions of books. It is still in beta, but already more than 23m books are in its system, drawing information from 19 major libraries and linking to the text of more than 1m out-of-copyright titles."
ScholarsArchive@OSU   Oregon State University's digital service for gathering, indexing, making available and storing the scholarly work of the Oregon State University community.
SCHOLARLY SOCIETIES PROJECT - Links to the web sites of over 1,000 scholarly societies.
UNIVERSAL DIGITAL LIBRARY - Over 1.5 million digitized books (Million book project - an outgrowth of the Universal Library)
UNIVERSITY OF WASHINGTON - "Virtual Library"
 

HATHITRUST DIGITAL LIBRARY - brings together the immense collections of partner institutions in digital form, preserving them securely to be accessed and used today, and in future generations.
INTERNATIONAL CHILDREN'S DIGITAL LIBRARY: A LIBRARY FOR THE WORLD'S CHILDREN - Project of the University of Maryland with a goal to build an international collection that would appeal to children ages 3-13.  The site is also a platform for researchers in their quest to study international children's literature and digital material.
INTERNET ARCHIVE -  an Internet library, with the purpose of offering permanent access for researchers, historians, and scholars to historical collections that exist in digital format.
LIBRARY OF CONGRESS - The nation's oldest federal cultural institution. The Library preserves a collection of nearly 121 million items.
LIBRARYDEX - Search for any library in the United States with this directory of library homepages, web-based OPACs, Friends of the Library pages, library e-commerce affiliate links. It does not include links to terminal-based OPACs.
NATIONAL INDIAN LAW LIBRARY - Maintained by the Native American Rights Fund (NARF).  Site provides free, invaluable, up-to-date coverage of federal and customary Indian law.