I've been using CDBaby for a few years now for our ShoreGrass music and think it's a terrific resource.

The best thing is the ease of digital distribution that they provide. People are becoming less and less interested in physical CDs but still download mp3's for their smart phones and ipods, using sites like iTunes, Napster, Amazon et al. The digital distribution option of CDBaby sends your music to all those popular download sites. And CDBaby lets you direct deposit royalties to your bank account, so it's nice to have little deposits made to your account without any intervention at all.

Emphasis on the little, but hey, this is folk music...