Academic Search Premier (EBSCO) - a multi-disciplinary database that provides full text for more than 4,600 journals, including full text for nearly 3,900 peer-reviewed titles. PDF backfiles to 1975 or further are available for well over one hundred journals, and searchable cited references are provided for more than 1,000 titles.
Trans-Atlantic Slave Trade Database - this database is the culmination of several decades of independent and collaborative research by scholars drawing upon data in libraries and archives around the Atlantic world.
U.S. History in Context - complete overview of U.S. history that covers the most-studied events, issues, and current information. Contains journal articles, primary documents, viewpoints, and reference sources.