Podcasting: Wayne’s World v.s. Corporate Media

My winner/loser scenario is a David and Goliath story, still in its early stages but picking up serious steam, embedded in a larger conflict between two colossal mediums. I am interested primarily in podcasts, but before digging into podcasts specifically we need to step back and see the larger picture, a face-off between two mediums, with terrestrial radio on one hand and streaming services, including streaming radio, on the other.