African American Review
-from Literature Online Full-Text Journals
Holdings: 1994-

America's Civil War
-from EBSCO MegaFILE
Holdings: 7/1/1996-

Black Abolitionists Archive
University of Detroit Mercy Black Abolitionists Archive is an historical research center which contains an extensive primary source collection on antebellum black activism.

Civil War History
-from Project Muse
Holdings: 2000-

Freedom's Journal

Not sure how good this one will be...

Samuel J. May Anti-Slavery Collection
Numbering over 10,000 titles, May's pamphlets and leaflets document the anti-slavery struggle at the local, regional, and national levels. Much of the May Anti-Slavery Collection was considered ephemeral or fugitive, and today many of these pamphlets are scarce. Sermons, position papers, offprints, local Anti-Slavery Society newsletters, poetry anthologies, freedmen's testimonies, broadsides, and Anti-Slavery Fair keepsakes all document the social and political implications of the abolitionist movement.

Studies in the World History of Slavery, Abolition and Emancipation