Directories

ReferenceDesk.org - A large categorized collection of reference links to over 600 different sites.
http://www.referencedesk.org/

Virtual Learning Resources Center - Search a collection of resources recommended by librarians and educators. Select from subject specific databases or general web sites, news sources, or electronic text archives.
http://www.virtuallrc.com/

Lexico Publishing Group, LLC - Independent company offers a dictionary, thesaurus, and word of the day mailing list, with details of services and sponsorship.
http://www.lexico.com/

IPL Associations on the Net - Search Associations on the Internet through the Internet Public Library.
http://www.ipl.org/IPLBrowse/GetSubject?vid=13&cid=7

The Info Service - An enormous reference resource featuring links in categories like programming, computer help, genealogy, hobbies, business and travel.
http://www.info-s.com/

Langenberg - Provides access to multiple phone, reference, geographic, business, search, and media databases with integrated search tools.
http://www.langenberg.com/

Business Reference Page - Links to directories of business information, phone numbers, government resources, maps, FAQs, dictionaries, and financial calculations.
http://www.referencepage.com/referencepage.html

RCLS DeskRef - Sources for quick answers to reference questions. From the Ramapo Catskill Library System of Middletown, New York.
http://www.rcls.org/deskref/

Melissa Data - ZIP Codes, area codes, cities, states, addresses, information about non-profit organizations, people who have contributed to political campaigns, and demographics.
http://www.MelissaData.com/lookups/index.htm

Martindale's Reference Desk - Large collection of links to reference resources, including language centers, calculators, maps, and science tables.
http://www.martindalecenter.com/

Refdesk.com - A one-stop site for all things Internet including news, weather, sports, reference, encyclopedia (50 areas), facts on file, FAQs, tutorials, search engines, Win95, free stuff, and games. Includes over 20,000 links.
http://www.refdesk.com/

LibrarySpot.com - Reference collection including dictionaries, encyclopedias, newspapers, maps, reading lists, and quotations.
http://www.libraryspot.com/

Trussel's EclectiCity - Links cataloged in the form of on-line publishing: stories, articles, dictionaries, bibliographies, song-lists, word-lists, phone-lists, and translations.
http://www.trussel.com/