From the Escape Pod Metacast #3

Based on comparing listeners and subscriber numbers, Escape Pod is the second largest market for short science fiction, with 20,000 downloads after a month for each episode. I don't have anything to say about that. I just want to mention it, and see what you all think of that. I've talked about this before, but I think their listener count has grown since then.

(And yes, the prospect of my latest sale to them being heard by 20,000 people is somewhat terrifying.)