One morning during SXSW, I walked through Flatstock, the show of music poster art. Once, it was dominated by images from drive-in culture: Betty Page and pin-up girls, hot rods, the walking dead from EC Comics. Now, posters for shows by the Decemberists, Death Cab for Cutie and the like are illustrated by Chris Ware-alikes.
… and for more SXSW coverage, go to SmoothJazzSuperstars.com. I try to avoid cross-posting.