Library of Congress Chronicling America

From the Chronicling America site: "Search America's historic newspapers pages from 1836-1922 or use the U.S. Newspaper Directory to find information about American newspapers published between 1690-present. Chronicling America is sponsored jointly by the National Endowment for the Humanities and the Library of Congress."

A national directory from the Library of Congress that lists of libraries around the country that have the newspapers in their collections.