United States History (via Academic Search Ultimate)
While this multidisciplinary resource includes 10,000 full-text peer-reviewed journals, this link will take you to the results for the subject heading "United States History."
Full runs of more than 2,600 top scholarly journals in the humanities, social sciences, and sciences.
Project MUSE is a collaboration between libraries and publishers, providing 100% full-text, affordable and user-friendly online access to a comprehensive selection of prestigious humanities and social sciences journals.
Topics range from the arrival of Vikings in North America all to the way to the first stirrings of the American Revolution and on through the Civil Rights movement, 9/11, and the War on Terror. Includes reference works, news and periodical articles, and primary resources.