As of today, the Robert Penn Warren Center for the Humanities has gone public with the digital archive, "Who Speaks for the Negro." In 1965, the renowned author and Vanderbilt graduate Robert Penn Warren published his book Who Speaks for the Negro?, in which he attempted to determine the leaders of the black Civil Rights movement. The digital archive provides open access to the recorded inteviews conducted by Warren with some of the most important activists along with written trasnscripts in addition to numerous other documents. Written texts are available both as images of the original as well as searchable transcriptions.
This is an amazing resource for anyone with scholarly or personal interest in a fascinating moment in US history.