http://www.folkstreams.net/

The mission of Folkstreams.net is to build a national preserve of
documentary films about American folk or roots culture. Produced by
independent filmmakers, these hard-to-find films give voice to the arts
and experience of diverse American groups. They are streamed on the
website together with background materials that highlight the history
and aesthetic importance of the traditions and the films.

Folkstreams.net makes these films easy to find and to see by
video-streaming them on the Internet, and also provides in-depth and
reliable contextual materials about the subjects and the filmmaking.
Folkstreams.net also encourages alternative forms of filmmaking about
subjects neglected by mainstream corporate media.