This website explores the vaccination process from 900 CE to the present day. Tracing humanity's earliest known observations about disease transmission and immunity up to modern vaccination programs, the website includes articles, primary sources, and interactive activities.

Most attractive to educators will be the "Gallery" section. Browse more than 550 primary sources related to disease and vaccination, including pamphlets, photographs, artifacts, and more, as well as 90 videos. For easier browsing, filter the sources by topic, media type, or time period.

History teachers will also appreciate the "Activities" section. Seven interactive diagrams illustrate scientific and historical concepts, including herd immunity, how vaccinations work and how they are made, and changes in required vaccines over time. "Pioneer Breakthroughs," an interactive quiz, tests players' knowledge of vaccine-related discoveries, and "The Scientific Method" walks players through the steps in identifying the source of a disease outbreak and containing it. "Illsville," an online game, challenges players to keep the population of a town healthy from 1600 through the present day.

The site also includes an interactive timeline featuring images and short synopses of events from 900 CE to the present. View all of the events, or filter them by topic.

A database of essays in "Articles" covers more than 50 topics in the categories "Vaccine Science," "History and Society," "Vaccine Information," "Vaccine-preventable Diseases," and "Common Questions."

Note the four lesson plans in the "Educators" section. Spanish-language versions of site content are available as well.

More than 137,000 photographs of Florida, many focusing on specific localities from the mid-19th century to the present, are available on this website. The collection, including 15 online exhibits, is searchable by subject, photographer, keyword, and date.

Materials include 35 collections on agriculture, the Seminole Indians, state political leaders, Jewish life, family life, postcards, and tourism among other things. Educational units address 17 topics, including the Seminoles, the Civil War in Florida, educator Mary McLeod Bethune, folklorist and writer Zora Neale Hurston, pioneer feminist Roxcy Bolton, the civil rights movement in Florida, and school busing during the 1970s.

"Writing Around Florida" includes ideas to foster appreciation of Florida's heritage. "Highlights of Florida History" presents 46 documents, images, and photographs from Florida's first Spanish period to the present. An interactive timeline presents materials—including audio and video files—on Florida at war, economics and agriculture, geography and the environment, government and politics, and state culture and history.

This interactive case study explores the 18th-century diary of midwife Martha Ballard and the construction of two late 20th-century historical studies based on the diary: historian Laurel Thatcher Ulrich's book A Midwife's Tale and Laurie Kahn-Leavitt's PBS film by the same name.

The site provides facsimile and transcribed full-text versions of the 1,400-page diary. An archive offers images of more than 50 documents on such topics as Ballard's life, domestic life, law and justice, finance and commerce, geography and surveying, midwifery and birth, medical information, religion, and Maine history. Also included are five maps, present-day images of Augusta and Hallowell, ME, and a timeline tracing Maine's history, the history of science and medicine, and a history of Ballard and Hallowell. The site offers suggestions on using primary sources to conduct research, including essays on reading 18th-century writing and probate records, searching for deeds, and exploring graveyards. A bibliography offers nearly 150 scholarly works and nearly 50 websites.

"Densho" means "to pass on to the next generation." In this quest, this website offers an archive of more than 668 oral histories presented in countless hours of video interviews on Japanese American incarceration during World War II. Materials also include approximately 12,000 historical photographs, documents, and newspapers. Visitors to this website should keep in mind that Densho is continually engaged in expanding its resources and adding more interviews, photographs, and documents, so be sure to check back periodically to discover new content!

Access to archival materials requires free registration. Once registered, users may select materials according to 32 topics, including immigration, community, religion and churches, education, race and racism, identity values, resistance, economic losses, redress and reparations, and reflections on the past.

Materials available without registration include lesson plans and information on "Causes of the Incarceration," "Civil Rights and Japanese American Incarceration," "Sites of Shame: Japanese American Detention Facilities," and "In the Shadow of My Country: A Japanese American Artist Remembers." The website also offers 90 multimedia materials providing historical context, a timeline, a glossary, and a list of related sources in print and online.

This website provides free access to a variety of visual materials and "seeks to illustrate the unique role of visual images in American history." Clio is an educational organization developing American history projects with appeal to a wide audience, including students, educators, and researchers. This site aims to not only provide access to a variety of visual historical materials, such as photographs, illustrations, and material objects (namely quilts), but also "to promote visual literacy by exploring the variety of ways that images enhance our understanding of the past and challenge us to hone our interpretive skills."

The website is organized into three main sections. The first, "Visualizing America," includes two collections of modules, titled "Picturing the Past: Illustrated Histories and the American Imagination, 1840–1900," and "Quilts as Visual History." A second section, ”Photography Exhibits," includes three photography collections: one focusing on the work of Frances Benjamin Johnston, another on the work of the Allen Sisters (Mary and Frances Allen), and the Peter Palmquist Gallery. A third section, "Creating History," examines the figure of Lowell Thomas, who became one of America's best known journalists, as well as the media version and reality of Lawrence of Arabia.

An additional section concerning women's history and lives in the 21st century and second half of the 20th century is planned for 2013.

A valuable website to students and researchers alike, it suffers only slightly from a lack of search capabilities.

Presents about 50 facsimile reproductions and transcriptions of original documents, newspapers, books, autobiographies, biographies, portraits, and maps from the 18th and early 19th centuries. Examples include the Declaration of Independence, the Jay Treaty, George Washington's journal of his trip to the Ohio Valley, published in the 1754 Maryland Gazette, and 15 contemporary obituaries of well-known figures. Portraits include 24 statesmen and 12 "notable women." The site also furnishes guidelines for deciphering early American documents; seven "short films of noteworthy events," including a 35-minute feature entitled "The Life of George Washington"; four discussion forums; a collection of interactive crossword puzzles; the online journal, The Early America Review; and a news-ticker relating events that occurred "On This Day in Early America." Includes an "Early American Digital Library" from which visitors can view more than 200 digital images from early American engravings of people, places, and events (full-size images are available for purchase). Created by a collector of early Americana.

This learning center focuses on the devastating 1779 Continental Army campaign into Iroquois Country that set out to destroy the Seneca, Cayuga, and Onondaga nations who had allied themselves with the British. It features maps, images, audio/visual presentations, and lesson plans. Three maps show the places affected by the campaign and its aftermath, including an interactive map explaining the background and course of the campaign, as well as an actual campaign map from 1779. The site has more than 300 images in 11 different thematic galleries including Iroquoia, the events of the campaign's 25th anniversary, traditional images, and alternative viewpoints. There are 10 audio/visual presentations directly inspired by the campaign and its aftermath or "devoted to a world freed from its legacy."

The educator's guide to the campaign offers an introduction that includes an overview, background to the campaign and goals, and 13 lesson plans. The site also provides a section for posting commentary and discussion about the campaign and provides 13 links to related websites. A useful site for teaching the Revolutionary War and for anyone with an interest in the 1779 Sullivan-Clinton Campaign and its legacy.

This website presents more than 250 commercials that appeared on American television sets beginning in 1952 to sell presidential candidates to the public. Advertisements from each election, including the 2008 campaigns, are accessible by year as well as by common themes and strategies used over time, such as Commander in Chief, Fear, Children, and Real People. Advertisements are also browsable by issue, such as civil rights, corruption, war, taxes, and welfare.

This collection includes well-known ads such as the Daisy Ad and well-known public figures, such as Harry Belafonte's advertisement in support of Kennedy, as well as many others that may be less familiar in the 21st century. Essays focus on analyzing advertising strategies of major party candidates and a program guide presents a history of the usage of television commercials in campaigns.

The USS Constitution Museum developed All Hands on Deck as a means of introducing K–12 educational elements across subjects (math, art, and more) using the history of one of the United States' most renowned military vessels, the USS Constitution.

The website itself is somewhat disorganized. However, there are a plethora of lesson plans embedded within it for students of any grade level.

The available lessons are divided into five sections—preview activities (to determine pre-existing knowledge), the building of early U.S. military frigates, the War of 1812 and the Barbary Wars, 1800s life aboard a warship, and the lasting legacy of the USS Constitution. These sections have subsections, within which you can find individual lessons intended for grades K–4, 5–8, and 9–12. Alternatively, visiting "How to Use This Online Curriculum" includes a linked list of states. Clicking on any of the available states—IL, MD, WA, SC, TN, MO, TX, NM, CO, MT, and VA—offers a list of the activities available on the website which correlate with state standards. The individual subsections also include recommended field trip sites, films, books, games, music, and more; as well as anecdotes, literature, and other "grab bag" additional items of interest.

The Image Gallery offers a smattering of paintings, illustrations, and photographs of the vessel and its officers. The gallery also contains a single newspaper recruitment ad dating to 1798.

Educators who would prefer a tangible copy of the curriculum can send an electronic request.

Alternatively, you may want to brush up on your USS Constitution history yourself. In that case, the website offers a 19-minute video in which a young girl meets a variety of figures aboard the ship—a captain's wife, a powder monkey, and an African American sailor among them.

In the 1950s and 1960s, the Civil Rights Movement was covered on news stations around the country. This website provides 230 of these video clips from two local television stations in Roanoke, Virginia. Clips feature both national events, such as the speeches of Martin Luther King, Jr. and John F. Kennedy, as well as footage of local school desegregation, protests, and interviews on the street.

Accompanying this footage are 14 oral histories (several from Virginians with firsthand knowledge of the Prince Edward Public Schools closing), and 23 documents that chronicle the official development of Massive Resistance in Virginia, in particularly the involvement of Senator Harry F. Byrd. "Essays and Interpretation" provides important historical context and analysis, with detailed pieces on "Virginia's Massive Resistance to School Desegregation" and the development of television news coverage of the Civil Rights Movement in Virginia and Mississippi.