What is the source of the podcast directory?

@mdphunk said:
As a podcaster, a method of submission would be greatly appreciated and is an expectation of any podcast consumption tool. Nearly all other podcasting platforms have offered this from the start in order to grow their library (ex: Spotify, Stitcher).

I think that would be great to add, and I believe it is something in consideration. Podcasts is launching today as beta, which basically means its unfinished. We have more features and refinements to make as the beta progresses, and before we remove that moniker. The current submission method is to add a podcast by URL, but that does not immediately add it to the catalog for everyone, it is for adding at the per-user level. For now, we encourage producers to publish their podcasts through the normal means and as we continuously grow our catalog, they’ll get added.