Monetization: you could sell the service to professional podcasters as it would increase content on their site, and possibly serve as another place to put ads f

Monetization: you could sell the service to professional podcasters as it would increase content on their site, and possibly serve as another place to put ads for their sponsors. If you focused on a core set of popular podcasts you could package it as a monthly ebook or similar product. While overall people don't like paying for content like that I think it's possible to find a niche market that would.