FastCompany:

A lot has changed since the early days when iTunes was mostly populated with The Ricky Gervais Show and an assortment of news podcasts repackaged from radio shows. These days, according to Apple, it is home to over 525,000 active shows, with more than 18.5 million episodes available, including content in over 100 languages. Its podcasts span the globe, covering 155 countries and, per Apple, “29 groupings of localized editorial.” In short, if you feel overwhelmed with podcast content–you’re not alone.

Mind-boggling numbers. The back end of the advertising-dollar gold-rush curve.