From the "left coast," San Diego, CA:

Lestat's Coffee House on Adams Avenue
Acoustic Music San Diego on Mansfield Avenue (off Adams)
Twigg's Coffee House (on occasion)

Also, the annual Adams Avenue based Roots Music Festival. Lou
Curtiss, collector/archivist/historian owner of Folk Arts rare records on Adams Avenue, who helped found the event, has one of the greatest collections of period recordings anywhere. A great local resource for roots music, folk, jazz, blues - you name it, dating back to the very early 1900's. If you happen to vacation here, it is well worth a visit.