Merrimack Valley Library Consortium
(This site links to public libraries throughout the Merrimack Valley. If you have a library card from any one of these libraries you may use it to access on-line reference sources.)
This great site has every reference tool you could imagine, dictionaries, encyclopedias, news, weather and links to other great sites. The best of the best!!!
(This site provides links to online sources of information. It is organized by subject, using the Dewey Decimal System)
This site has individual pages on hundreds of topics that are maintained by individual editors.
Librarian's Index to the Internet
A great site to begin your search for factual sources.
An interesting question answered each day. Questions are archived. Examples include How do roller copasters work? and Do lizards have teeth?
Multnomah County Library Homework Help
(a free virtual library resource center for educators and students, librarians and their patrons, families, businesses and just about anyone exploring the Web for valuable research information.)
Virtual Reference Library
(Reference sites selected by the Virtual Reference Library in Toronto Canada)