If you aren’t already familiar with it, you ought to check out BlackPast.org. From its faq sheet:
BlackPast.org, Remembered and Reclaimed:
An Online Reference Center for African American History Developed by
Dr. Quintard Taylor, The Scott and Dorothy Bullitt Professor of American History, University of Washington, Seattle
BlackPast.org, founded on February 1, 2007, is broadly conceived to provide reference information on people of African ancestry, in the United States and around the world. BlackPast.org is supported by a staff of eleven volunteers. The website has over 2,500 pages and is free and ungated. New features are added regularly.
1) An online encyclopedia featuring over 1,500 entries which describe people, places and events in global African history written by more than 250 academic, independent and student historians. Their contributions make BlackPast.org one of the largest online encyclopedias devoted exclusively to the history of people of African ancestry.
2) The complete text of over 130 speeches by African Americans from 1789 to 2008.
3) Nearly 100 full text Primary Documents—court decisions, laws, organizational statements, treaties, government reports and executive orders which help describe the African American past.
4) Seven major timelines that show the history of people of African ancestry from 5,000 B.C.E. to today.
5) Three bibliographies listing the more than 1,200 major books on African American history categorized by subfield and time period.
6) Four “Gateway” Pages with links to 50 digital archive collections, 100 African American museums and research centers in 30 states, 12 genealogical research websites and over 500 other website resources on African American history.
7) Perspectives Online Magazine which features commentary of important, but little known events in black history often written by the individuals who participated in or witnessed them. Many of these accounts are instant primary sources. To date over 25 articles have appeared.