If you need to know how to promote a podcast, you’re in the right place. We speak to podcast hosts all the time, and aside from starting a podcast, they all say that marketing is their biggest challenge. There are currently more than half a million podcasts . They are more popular than ever. According to 2018 data from Edison Research , podcasting continues to grow steadily every year. 44% of Americans say they’ve listened to a podcast, which is up 5% from the previous year.