For those who enjoy audio books, fictional podcasts seem to be coming quite the thing. You might check out both Passenger List and Blackout. Passenger List has some strange ads inserted at odd times. Blackout is much better produced and fairly suspenseful. I buzzed through all episodes of both in two days!
Now I'm listening to Riding High by Ruth Zukerman. I thought it might be a fun fitness-related listen but so far it's not all that great. We'll see.....