NUCMC (National Union Catalog of Manuscript Collections). Indexes archival materials held in repositories across the United States.

Civil War: Antebellum Period to Reconstruction (1840-1877). Searchable full-text of some 150 newspapers, about 50,000 government documents, and 4,000 broadsides and pieces of ephemera. Also includes maps and advertisements.

African American Newspapers, 1827-1998. Searchable full-text of some 270 newspapers, including seven from Ohio. Coverage begins Freedom's Journal, the first African American newspaper published in the U.S. in 1827.

American Periodicals Series. Full-text of more than 1,000 periodicals published in the United States between 1741 and 1900. Includes general interest magazine, women's magazines, and scientific and medical journals. A great resource for American history and literature.

Women and Social Movements in the United States, 1600-2000. More than 20,000 pages of documents representing 57 projects related to the history of women in American social movements. Some 1,600 documents, 600 images, and more than 600 links to other websites are included.

Kent State Shootings Oral Histories. A collection of recordings related to the May 4, 1970 shootings of Vietnam War protestors at Kent State University. The oral histories include many eyewitness accounts of the event and its aftermath, contributed by people who were students, faculty members, and City of Kent residents at the time, as well as an account by an Ohio National Guardsman.

The Early Americas Digital Archive. (EADA) is a collection of electronic texts and links to texts originally written in or about the Americas from 1492 to approximately 1820. Open to the public for research and teaching purposes, EADA is published and supported by the Maryland Institute for Technology in the Humanities (MITH)

HarpWeek. Contains the text and images from Harper's Weekly from the Civil War and early Reconstruction periods (1857-1871)

E. W. Scripps Papers 1868-1926. A growing collection of digitized letters and photos from the Scripps Manuscript Collection of Ohio University. Edward Willis Scripps was a businessman and a journalist associated with founding both the Scripps Howard newspaper chain and the news agency that is now United Press International (UPI).