Just seconding that recommendation...Robbie Fulks is a unique breed - he's not only an absolute treasure trove of knowledge about roots, folk, Americana and country music (he hosts "Secret Country" on XM, for crying out loud - the guy knows everything, EVERYTHING about the music), but he's also an actual, gifted musician and songwriter who can play the music he's so obsessed with. On stage, he manages to be alternately hilarious, raucous and poignant. Pretty darned good guitarist, too.
Anyone who appreciates real country music and thinks Toby Keith and Carrie Underwood and their ilk are a scourge should plunk down for a Fulks show. He's the real thing. I mean, c'mon, the guy wrote a song named "F$*# Nashville."