Drabblecast (Strange Stories, By Strange Authors, for Strange Listeners) opens each podcast reading a 100 word story submitted by listeners. He also reads a longer story along with some discussion. The host, Norm Sherman, is an excellent narrator.
Originally they used their own stories and contributions from listeners, but now they often use material from established authors like Tim Pratt, Mike Resnick, Ben H. Winters, Terry Bisson, and Mur Lafferty.
Here's an episode featuring one of my favorite short stories,
Bears Discover Fire.
http://www.drabblecast.org/2012/01/2...discover-fire/