I used to think of a podcast as a spoken blog. At least that is what they seemed like years ago when I first listened to a few.
Lately, I’ve been checking out what is out there again. I am amazed and a little hooked. Apple as its own app simply called, “Podcasts.” It is free. There is a place for searches. Just type in a topic and check it out. I like “This American Life” from NPR.
Rick Steves has a travel podcast site which is very interesting. I am also signed up for auto download of podcasts on a site called, “Books on the Night Stand.” I listened to one from the Nutrition Diva on my PC. Then checked and downloaded it on my Apple phone.
Basically, I would say to just Google podcasts and go from there. They are usually less than an hour, much shorter than an audio book, so might be ideal for travel.