From a Joint Announcement (via ASERL):
The Association of Southeastern Research Libraries (ASERL) and Adam Matthew Digital are pleased to announce a successful partnership that has resulted in ASERL libraries gaining perpetual access to all Adam Matthew Digital content published through 2016. The cache of content now available to ASERL institutions includes 77 collections such as Colonial America, American History, American Indian Histories and Cultures, Global Commodities, Slavery, Abolition and Social Justice, and Popular Culture in Britain and America.
Working as a group to reach a collective spend goal, ASERL libraries are celebrating the additional, unprecedented level of access to essential primary source content from Adam Matthew Digital.