Business Reference Page - Links to directories of business information, phone numbers, government resources, maps, FAQs, dictionaries, and financial calculations.
DeskRef - Sources for quick answers to reference questions.
The Info Service - An enormous reference resource featuring links in categories like programming, computer help, genealogy, hobbies, business and travel.
Langenberg - Provides access to multiple phone, reference, geographic, business, search, and media databases with integrated search tools.
LibrarySpot.com - Reference collection including dictionaries, encyclopedias, newspapers, maps, reading lists, and quotations.
Martindale's Reference Desk - Large collection of links to reference resources, including language centers, calculators, maps, and science tables.
Melissa Data - ZIP Codes, area codes, cities, states, addresses, information about non-profit organizations, people who have contributed to political campaigns, and demographics.
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.
ReferenceDesk.org - A large categorized collection of reference links to over 600 different sites.
Trussel's EclectiCity - Links cataloged in the form of on-line publishing: stories, articles, dictionaries, bibliographies, song-lists, word-lists, phone-lists, translations...
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.