I've been having fair luck lately in the "used CD" section of Hastings - a book & record chain. I've found $5 CD's of Uncle Dave Macon, Spade Cooley, and Big Bill Broonzey.   However, one I thought was Bob Wills turned out to be Asleep at the Wheel doing a Bob Wills tribute - someone had put the wrong CD in the right jewel box! Next time I'll check the contents!

At jam sessions I listen real closely to old timers and ask where they heard this or that song. Sometimes it's a real revelation.

I also watch the used record bins at off-beat little shops. Just an hour ago I found "R. Crumb and his Cheap Suit Serenaders," a group I've wanted to hear for 20 years.