Open Education Data Base
"Hundreds of libraries and archives exist online, from university-supported sites to accredited online schools to individual efforts. Each one has something to offer to researchers, students, and teachers. This list contains over 250 libraries and archives that focus mainly on localized, regional, and U.S. history, but it also includes larger collections, eText and eBook repositories, and a short list of directories to help you continue your research efforts.
The sites listed here are mainly open access, which means that the digital formats are viewable and usable by the general public. So, such sites as the Connecticut Digital Library (iCONN) are not listed, as they operate on the premise that the user has a Connecticut library card in his or her possession.Efforts were made to go to the root source for these collections. In other words, if you’re seeking the American Memory Project, which was created and housed at the Library of Congress, then you’ll find the link for the Library of Congress rather than the link for American Memory (although we included that link in the description of the Library of Congress listing). The root sources, in most cases, will lead you to collections that are too numerous to list here. In fact, it would be impossible to list all sources and we know we may have missed some favorites.
As a warning, many states listed their collections as “archives” when, in reality, the sources contained secondary sources such as books and transcriptions rather than a digital image of the actual document. Still, these resources can be invaluable for the person who seeks sources on family histories or on regional histories. To that end, we offer links to localized collections first, categorized by state. "