As I mentioned to you when you asked on PredictionBook, look to the media threads. These are threads specifically intended for the purpose you want: to find/share media, including podcasts/audiobooks.

I also would like to reiterate what I said on PredictionBook: I don't think PredictionBook is really meant for this kind of question. Asking it here is fine, even good. It gives us a chance to direct you to the correct place without clogging up PredictionBook with nonpredictions.