Bad Lit: The Journal of Underground Film has an interview with fiercely independent animator Bill Plympton. I met him once back in 2003 at a film festival in Chicago and he was the most engaging and approachable guy in the entire place. I attended one of his talks and enjoyed the spectacle of him selling his various wares out in the theater lobby.
He’s got an excellent web site where you can spy on him as he animates and see a wonderful trailer for his latest feature film, Idiots and Angels.