Awesome Stories - http://www.awesomestories.com/ - Database of primary sources including documents, images, video and audio. Topics include current and historical events. The site requires membership but it's free to sign up.
David Rumsey Historical Map Collection - http://www.davidrumsey.com/ Started 20 years ago, it focuses primarily on cartography of the Americas from the 18th and 19th centuries. You'll also find maps of other parts of the world, contained in atlases, globes, school geographies, books, maritime charts, and more.
Digital History - A wealth of online resources related to history from the University of Houston. Unfortunately there is no search feature, you must browse to find things.
Best of History Web Sites - Best of History Web Sites aims to provide quick, convenient, and reliable access to the best history-oriented resources online in a wide range of categories. Best of History Web Sites contains links to over 1200 history-related web sites that have been reviewed for quality, accuracy, and usefulness.
CIA World Factbook - https://www.cia.gov/library/publications/the-world-factbook/ - Very current information and statistics about most countries of the world from the Central Intelligence Agency.
U.S. Dept. of State Background Notes - http://www.state.gov/r/pa/ei/bgn/ - Background Notes include facts about the land, people, history, government, political conditions, economy, and foreign relations of independent states, some dependencies, and areas of special sovereignty. The Background Notes are updated/revised by the Office of Electronic Information and Publications of the Bureau of Public Affairs as they are received from the Department's regional bureaus.
Country Studies(Library of Congress) - http://www.loc.gov/rr/frd/ - The Country Studies Series presents a description and analysis of the historical setting and the social, economic, political, and national security systems and institutions of countries throughout the world.
American Cultural History: the Twentieth Century - information compiled by the Lone Star College decade by decade http://kclibrary.lonestar.edu/decades.html
Picturing the Century: Galleries - 100 years of photographs from the National Archives
Women of the Century: Decade by Decade - "an annotated list of more than four dozen phenomenal American women of the twentieth century"
History Central: American History
- browse by major eras of the twentieth century or select 20th Century Almanac to browse year by year
100 Years of New York City - "... offers a glimpse into the past 100 years of New York City - a decade at a time." - from the archives of the New York Times
Solemates: The Century in Shoes - a decade by decade look at the century in shoes
American Memory - the Library of Congress/ collection of primary source materials from American history including pictures, video and sound clips, correspondence, etc.
EyeWitness Accounts - photos, letters, and diaries from the past; from the publishers of the EyeWitness books
Documents for the Study of American History - an extensive list of online primary source documents on American history, listed by time period; by Lynn H. Nelson, Emeritus Professor of Hiswtory, University of Kansas
Political Cartoons from the Crash to the Millennium: Library of Congress Exhibition - a chronicle of the nation's political history as seen through the work of the editorial cartoons of Herb Block; a Library of Congress exhibit
Political Cartoons: Oliphant's Anthem - editorial cartoonist Pat Oliphant's work from the Library of Congress exhibition
The Advertising Artwork of Dr. Seuss - brief descriptions accompany the images of illustrations created by Dr. Suess before he became a children's book author; from teh Mandeville Special Collections Librry at the University of California, Sna Diego
America at Work, America at Leisure: Motion Pictures from 1894-1915 - a collection of 150 motion pictures illustrating "work, school, and leisure activities in the United States"; also contains related essays; from the American Memory collection of teh Library of Congress
Culinary History Timeline - "a sampling of innovations, laws, and product introductions in the U.S. food industry"; from the United States Department of Agriculture; this pdf file takes a while to load - patience!
Time Archives: 1923 to the present - search the digital archives of Time magazine's covers; you will need to allow pop-ups to view the site, just click on the yellow bar at the top of the screen
Life Magazine Covers - covers from Life magazine from 1936 to 1972
Photographs from the Chicago Daily News: 1902-1933 - photos from the collection of the Chicago Historical Society; over one-third are related to sports
First World War.Com - an extensive exploration of World War I by Michael Duffy; includes: How It Began, Battles, Who's Who, Timeline, On This Date, Vintage Audio, Photos, first person accounts, and more
America in the 1920's - this site from Eyewitness History contains articles on many of the important developments of the Twenties and includes many photos of the time
California in the 20's
- scroll through the pages of this virtual gallery freom the Los Angeles Public Library; the collection of annotated photographs includes images of marathon dancing, state society picnics, silent films and junk car races - all taken in Southern California during the 1920's
America in the 1930's- an exploration of film, print and art of the thirties from the University of Virginia
Riding the Rails - a PBS American Experience site describing life on the road during the 1930s
New Deal Network - a research and teaching resource on the Great Depression, the 1930's, and the Roosevelt administration; developed by the Franklin and Eleanor Roosevelt Institute
Surviving the Dust Bowl - a PBS American Experience describing life during the Dust Bowl
The Literature and Culture of the 1950s - readings on the 1950s including many primary source materials, from Al Filreis, a professor of English at the University of Pennsylvannia.
The Sixties: the Years That Shaped a Generation - a look at the unique culture of the sixties from PBS; includes culture, politics and a timeline