Another great resource: Prologue Magazine
Some issues can be viewed online; some are out of print.
A good addition to your Genealogical collection - order individual issues for $5.00.
Summer 1997 (out of print)
Contents:
Prologue in Prespective: Voices of African Americans in Federal Records
John W. Carlin
Dedication: In Memory of Sara Dumlap Jackson, May 28, 1919-April 19, 1991
Ira Berlin
Introduction
Institutions of Memory and the Documentation of African Americans in Federal Records
Walter B. Hill, Jr.
Civil War and Reconstruction
Preserving the Legacy of the United States Colored Troops
Budge Weidman
Freedmen's Bureau Records: An Overview
Elaine C. Everly
From Slave Women to Free Women: The National Archives and Black Women's History in the Civil War Era
Noralee Frankel
[READ MORE ...]