According to this Bridge Ratings study, there are currently about 3 million regular listeners of podcasts in the United States. That number is projected to grow to about 10 million by 2020.
Whether those current and projected numbers are reasonably accurate, I have no idea. After all, back in early 2006, Arbitron estimated that there were 27 million podcasst listeners in the U.S. Go figure.
But: It’s interesting to take a look at the top podcasts downloaded via iTunes. As I write this, five of the top 20 podcasts are from NPR, and a sixth is from Chicago Public Radio: This American Life, which in fact ranks number one.
Also interesting (to me, anyway, since one of my college majors was philosophy) is that two of the top 20 podcasts are philosophical in nature: Philosophy Bites (I’ve listened to several of these, and it’s pretty good) and The Philosophy Podcast.
Given a media landscape where awful reality shows, celebrity “news,” the glorification of the shallow and mindless drivel are collectively relentless, I find this to be a hopeful sign.