Dig around a little - they have some super funny stuff, in addition to the Craig's List parody, there are some great podcasts and videos - from Captain Kirk on acid, to a "This American Life" takeoff, funny blogs from a 14th Century serf named Jacobus, mock wedding announcements and SkyMaul.
They have more video and audio skits on myspace.
I found out about the San Francisco comedy troupe Kasper Hauser courtesy of Boing Boing: Five favorite podcasts.
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