Louis Adamic’s article on the founding of Black Mountain College can be found in the April 1936 issue of Harper’s (w/ rebuttal by Bernard DeVoto in the same issue).
Portraits of students and faculty at Black Mountain College by Hazel Larsen Archer (at the Black Mountain College Museum + Art Center).
At the California Literary Review, an interview with Paul Collins on, among other things, the past, present, and future relationship of publishing and the marketplace.