Almanacs

Infoplease http://www.infoplease.com/
U.S. Census site http://www.census.gov/index.html
Old Farmer's Almanac http://www.almanac.com/index.php

Atlases

Encarta Map Center http://encarta.msn.com/encnet/features/MapCenter/Map.aspx
Outline Maps http://www.eduplace.com/ss/maps/
Geography @About.com http://geography.about.com/
All the Worlds Maps http://www.embassyworld.com/maps/maps.html
BBC News: Key Maps http://news.bbc.co.uk/1/shared/spl/hi/middle_east/03/v3_iraq_key_maps/html/daily_strikes/link1.stm
Perry Casteñeda Map Collection http://www.lib.utexas.edu/maps/historical/index.html
Historical Atlas of the Twentieth Century http://users.erols.com/mwhite28/20centry.htm
American Memory Maps Collections http://memory.loc.gov/ammem/gmdhtml/gmdhome.html

Biographical

Biographical Dictionary http://www.s9.com/biography/
Biography.com http://www.biography.com/
PBS Biographies http://www.pbs.org/neighborhoods/history/#bio
Who2? http://www.who2.com/
Grolier's American Presidency http://gi.grolier.com/presidents
POTUS http://www.ipl.org/ref/POTUS
President of the United States http://www.whitehouse.gov/history/presidents/index.html
Presidents of the United States http://www.presidentsusa.net/

Calculators and Conversion

Universal Currency Converter http://www.xe.com/ucc/
Calculator.com http://www.calculator.com/
Convert Me http://www.convert-me.com/en/

 

Dictionaries & Thesauri

YourDictionary.com http://yourdictionary.com
American Heritage Dictionary the English Language http://www.bartleby.com/61/
Write Express, Online Rhyming Dictionary http://www.rhymer.com/
Internet Picture Dictionary http://www.pdictionary.com/
Internet Public Library’s A+ Research and Writing http://www.ipl.org/div/teen/aplus/toc.htm
Purdue University’s Online Writing Laboratory http://owl.english.purdue.edu/handouts/index.html

Encyclopedias

Columbia (concise) Encyclopedia http://www.bartleby.com/65/
Britannica Concise http://education.yahoo.com/reference/encyclopedia/
Jewish Encyclopedia http://www.jewishencyclopedia.com/index.jsp
EH.Net Encyclopedia (Encyclopedia of Economic and Business History) http://www.eh.net/encyclopedia/
Cambridge Encyclopedia of English and American Literature http://www.bartleby.com/cambridge/
Internet Encyclopedia of Philosophy http://www.utm.edu/research/iep/
Encyclopedia Mythica http://www.pantheon.org/mythica.html
Encyclopedia Smithsonian http://www.si.edu/
New Advent Catholic Encyclopedia http://www.newadvent.org/
Wikipedia (collaborative open content) http://www.wikipedia.org/

The Fifty States

Internet Public Library’s Stately Knowledge http://www.ipl.org/youth/stateknow/skhome.html
50 States and Capitals http://www.50states.com/
Stateline.org http://www.stateline.org

Flags

World Flag Database http://www.flags.net
Guide to American Flags http://www.law.ou.edu/flags.html
Flags of All Countries http://www.theodora.com/flags.html

Government Information

FirstGov:Your First Click to U.S. Government http://www.firstgov.gov/
Ben’s Guide to U.S. Government for Kids  http://bensguide.gpo.gov

Maps

National Atlas http://nationalatlas.gov/
National Geographic’s Map Machine http://plasma.nationalgeographic.com/mapmachine/
Color Landform Atlas of the United States http://fermi.jhuapl.edu/states/states.html
TopoZone http://www.topozone.com/
MapQuest http://mapquest.com
Atlapedia Online http://www.atlapedia.com/
Worldwide Gazeteer http://www.gazeteer.com/

Nations and States

Library of Congress Country Studies http://lcweb2.loc.gov/frd/cs/
Library of Congress is Portals to the World http://www.loc.gov/rr/international/portals.html
State Department’s Background Notes http://www.state.gov/r/pa/bgn/
CIA World Factbook https://www.cia.gov/library/publications/the-world-factbook/docs/profileguide.html
World Statesmen.org http://www.worldstatesmen.org/
InfoNation (United Nations comparisons) http://www.cyberschoolbus.un.org/infonation/info.asp
INCORE: Internet Conflict Data Service http://www.incore.ulst.ac.uk/cds/countries/index.html
Human Rights Watch http://www.hrw.org/
Country Reports.org http://www.countryreports.org/
Economist Country Briefings http://www.economist.com/countries/
Amnesty International http://www.amnesty.org/ailib/aireport/
Lonely Planet’s Destinations http://www.lonelyplanet.com/destinations

Periodic Table

Los Alamos National Laboratories http://pearl1.lanl.gov/periodic/default.htm

Quotations

Bartleby (combined quote index search) http://www.bartleby.com/quotations/
QuoteLand http://www.quoteland.com
Quoteworld http://quoteworld.org

Reference Portals

University of Albany http://library.albany.edu/reference/
Bartleby.com http://www.bartleby.com/reference/
New York Times Navigator http://www.nytimes.com/navigator

Social Issues

Multnomah County Library’s Social Issues Page http://www.multcolib.org/homework/sochc.html
Public Agenda Online http://www.publicagenda.org/

Time: Calendars, Holidays, This Day in History

Alterna Time (chronologies) http://www2.canisius.edu/~emeryg/time.html
This Day in History http://www.historychannel.com/thisday/
(On This Day http://www.nytimes.com/learning/general/onthisday/index.html
Today in History Archive http://lcweb2.loc.gov/ammem/today/archive.html
Facts.com: What Happened That Day? http://www.2facts.com/stories/mainmenu.asp
Information Please Day in History http://www.infoplease.com/cgi-bin/dayinhistory/
DMarie Time Capsule http://www.dmarie.com/timecap/