It seems you can't turn around these days without tripping over a fabulous online digital collection. While searching this morning for an intriguingly-titled Civil War pamphlet (“Interior Causes of the War: The Nation Demonized and its President a Spirit-Rapper," by "A Citizen of Ohio"), I found that the lovely people at Cornell University had made it available online as part of their 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.