The National Park Service oversees many of the major battlefields of the Civil War. Their website is a guide to the battlefields, but also includes a wealth of information about collections, preservation, and background history.
This database provides access to digital collections of primary sources (photos, letters, diaries, artifacts, etc.) that document the history of women in the United States. These diverse collections range from Ancestral Pueblo pottery to interviews with women engineers from the 1970s
A portal to over 1,000 history-related websites, specifically targeting sites with strong educational content or a research orientation. Links are generally organized by period or topic.