General Reference
Xrefer, a metasearch of over 50 reference titles, including The Oxford Dictionary of Art, The Concise Medical Dictionary (Oxford), The Oxford Dictionary of Quotations, The Oxford Companion to English Literature, The Penguin Dictionary of Psychology, The Penguin Dictionary of Sociology, and The Grove Concise Dictionary of MusicBloomsburyMagazine.com, on-line database of reference books
Fast Facts, almanacs, factbooks, statistical reports and related reference tools
Bartleby.com, a searchable collection of many reference databases, encyclopedias, dictionaries, etc.
On-line Calculators, Conversion Tools, Measurements and Weights
I-Tools, a handy search and reference site
Archive Web, national archives around the world.
American Fact Finder, from the Census Bureau
Library and Archival Exhibitions on the Web, from the Smithsonian
Opinion Pages, searchable site that provides access to over 600 editorial pages from English newspapers world-wide.
WordReference.com, large bilingual dictionary (English to Spanish, Italian, French, and vice-versa)
Government and Public Record Links
U.S. Blue Pages, functional organization of federal resourcesFedStats, excellent source for statistics from the federal government
AmeriStat, "a one-stop source for U.S. population data"
CensusLinks, an excellent collection of links for census information in the U.S. and other countries
My Government, contact information for state and federal officials based on your zip code. Information on important measures and voting in U.S. Congress also available.
GovStartPage.Com, a handy, searchable index to government sources
411 for Government, search government directories for over 500,000 government and defense industry listings (by name, title, office, phone number)
Search Systems, over 676 searchable public record databases
Pacific Information Resources Guide to State Databases
US State and City Resources, various information: doctor finders, corporation finders, government phone numbers, marriage and divorce information, vital statistics, etc.
US Census Bureau, Census 2000 (resident population and apportionment counts)
World Bank Poverty Net, statistics and information on world poverty
Guide to County Governments, broken down by states
Community Health Status Indicators, detailed profiles of each US county's health status
ChildStats, this "web site offers easy access to federal and state statistics and reports on children and their families."
Other Reference Sites
American Religion Data Archives, qualitative data on American religionSurveys on the Net, surveys about Net use, trends, and much more.
Symbols in Christian Art and Architecture
Lives, the Biography Resource, supposedly the largest collection of biographical information on-line
Hartford Institute for Religious Research, good links to surveys on religious attitudes, etc.
National Opinion Research Center, for polling data
Places Named, a search engine for places
On-Line Phrase Check, check how English phrases are used in context
PublicFigure.com, a searcable and browsable site that provides information on public figures, including bios, profiles, lists of works, etc.
Style Guides
MLA Style ManualCitation style guides, a list of links to MLA, APA, Chicago, etc.
Dictionaries and Encyclopedias
Columbia Encyclopedia, sixth edition, searchable and browsable, with brief entries containing relevant linksOneLook Dictionaries, more than 550 general and specialized dictionaries with links
Lexicool.com, 500 translation dictionaries
Merriam-Webster Online, perhaps the best online dictionary and thesaurus
Wordsmyth English Dictionary-Thesaurus, one of the best on-line
Travlang's Translating Dictionary, translates words between more than a dozen languages.