Timelines
Maps and Travel
Museums and Zoos

50 States of the United States
Abraham Lincoln Online
Academy of Achievement
The American Experience [PBS]
American History 102: Civil War to the Present [University of Wisconsin-Madison] 
Ancient World Web
Anne Frank House
Anne Frank Online
Archiving Early America
The Avalon Project [Yale]
Many major historical documents (some dating as far back as the 12th century), with links to supporting documents, glossaries, and indexes
Benjamin Franklin: Glimpses of the Man
Biography.com
Black History: Exploring African-American Issues on the Web
Castles on the Web
Castles of the World
A reference for castles, palaces, and monasteries, with histories and links to real castles.
A Chronology of US Historical Documents [University of Oklahoma Law Center]
CNN
Colonial Williamsburg
The Columbus Navigation Homepage
Congressional Email Directory
Daily Life Index
Democratic National Committee
Department of Justice for Kids and Youth
The Department of Justice Webpage for Kids helps teach kids about legal and civil rights, federal court procedures, drug abuse prevention, and ways to get involved in community action to help prevent crime. The site also links to the FBI Kids & Youth Website and the Top 10 Most Wanted List.
Donner Online
Web-based activity in which students learn about the Donner party by collecting information, images, and insights from the Internet, and then producing a multimedia presentation to share with others
Economic Education Web
Encyclopedia Britannica Guide to Black History
EnviroLink
Famous Trials
Included are American trials dating back to the Salem witch hunts of 1692 and the Amistad case of 1839 and many from the 20th century involving the struggle for civil rights, Vietnam War crimes, the Chicago Seven, and the McCarthy era. Each case has an overview of events, a timeline, transcripts of the testimony, photographs, audio clips (when available), biographies of the participants, and other important information about the individual cases.Other famous trials covered are the trials of Socrates, Jesus, and Galileo.
FedStats
Statistics from more than 70 government agencies
Find a Grave
Locations of famous folks' burial sites; pictures
Franklin and Eleanor Roosevelt Institute
Frederick Douglass National Historic Site
Geography [About.com guide]
Weekly articles about geography, annotated links to many sites for maps and geographical information, an online world atlas, a glossary, weekly quizzes, a bulletin board, and a chat room
Geography World
The History Channel
The History Guy
HistoryNet
History Online
The History Place
History/Social Studies for K-12 Teachers
HyperHistory Online
"The World History Chart begins with David and Solomon and ends 3000 years later with Einstein, Picasso, Roosevelt and Churchill. In between, in divisions of 10 years, the major events, empires and invasions, inventions and achievements, rulers and leaders, writers, philosophers and scientists of world history can be reviewed at a single glance."  Available for purchase
Invention Dimension
Lesson Plans and Resources for Social Studies Teachers
Links to the Past: Tools for Teaching [National Park Service]
Maps and Geography [National Geographic]
The Mariners' Museum
History of seafaring peoples of the world
The Martin Luther King, Jr. Papers Project
Medieval World
Mr. Donn's Ancient History Page
Mr. Dowling's Electronic Passport
World history and geography lessons, with downloadable study guides, homework assignments, tests
The National Budget Simulation
National Clearing House for U.S.-Japan Studies (Indiana University)
National Council for the Social Studies
National Inventors Hall of Fame
National Women's History Project
Nobel Prize Internet Archive
Owl and Mouse Educational Software
Download free interactive map puzzles or learn online.
PBS History
Perseus Project
Digital library of resources studying the ancient world: ancient texts and translations, maps, illustrated art catalogs from 70+ museums
Presidents of the United States
Background information, election results, cabinet members, notable events, links to biographies, historical documents, audio and video files, and other presidential sites
Professional Cartoonists' Index: Teacher's Guide
Exploration of editorial cartoons to teach politics and current events
Republican National Committee
SCORE: History and Social Science [California Standards Alignment Resources]
Scrolls from the Dead Sea
Simon Wiesenthal Center
Smithsonian Institution
Smithsonian American Art Museum
Social Security Teachers Kit
Social Studies Development Center [University of Indiana]
Spartacus Internet Encyclopaedia of British History
Teacher Oz's Kingdom of History
A comprehensive collection of links to websites with historical resources
Thomas: Legislative Information on the Internet [Library of Congress]
Today in History [Library of Congress]
Tracks: Impressions of America
Multimedia learning resource to help students explore US history and geography
The Victorian Web
Virtual Autopsy
Combining science and social studies topics, this website presents an unusual account of the discovery of the body of a teenaged girl sacrificed to the Inca gods on a mountaintop in Peru five centuries ago.
Voice of the Shuttle: Web Page for Humanities Research [University of California, Santa Barbara]
Extensive academic resources
WideHorizon Education Resources Programs for World History
Sample lesson plans on papyrus and India, others available for purchase
Women in American History [Encyclopedia Britannica]
World Civilizations [Washington State University]
The World of the Vikings