American Memory is a digital record of American history and creativity, accessible as written and spoken words as well as still and moving images. These materials, from the collections of the Library of Congress and other institutions, chronicle historical events, people, places, and ideas that continue to shape America, serving the public as a resource for education and lifelong learning.
Chronicling America is a website providing access to information about historic newspapers and select digitized newspaper pages, and is produced by the National Digital Newspaper Program (NDNP) and cooperation with the Library of Congress.
Civil War @Smithsonian is produced by the National Portrait Gallery and is dedicated to examining the Civil War through the Smithsonian Institution's extensive and manifold collections.
Civil War 150 specifically focuses on events and exhibits at Smithsonian museums that celebrate the sesquicentennial of the Civil War.
The United States government is the largest publisher in the world, distributing Congressional reports, agency studies, in addition to numerous journals and magazines. The UALR Ottenheimer Library has a wide range of these publications that will be of use in researching the nation's civil war.
For pre-1976 publications, the hard copies of the Monthly Catalog Of United States Government Publications can be found on the 3rd floor. The volumes cover one to two (1-2) years a piece. Keep in mind that it might be necessary to look two to three (2-3) years after an event took place to be sure you have found all the materials. Government reports are often published well after an event takes place.
The Government Publishing Office Catalog of Government Publications indexes government publications from the U.S. Superintendent of Documents, the publisher of materials from all federal agencies. The online index starts with publications from 1976, but there are numerous publications on the US Civil War that were published long after the war ended.
The content for issues involving the U.S. Civil War is excellent. Materials can be searched using the name of a battle, member of the military, or location of an event. Keep in mind that many of the reports on the Civil War took years to write and publish so allow at least a 45-50 year range if you are going to limit searches by date.
The United States Serial Set is a collection of U.S. government publications compiled under the directive of Congress, capturing aspects of American life from the late 18th century onward, from farming, to westward expansion, scientific exploration, politics, international relations, business and manufacturing. It includes Congressional reports and documents as well as executive agency and departmental reports ordered to be printed by Congress.
Cornell University as provided a direct link to the War of the Rebellion volumes as part of their Making of America online database. While this set is also available in the United States Serial Set, it will probably be easier to locate specific volumes via Cornell's site.