What is a podcast? How can you listen to the podcast?
A podcast is a easy way to subscribe voice- and video files on the net.
You choose using a program or an app what you want to listen, then you will get constantly new files.
The most usual platform for distribution is to use iTunes Store. Apple offers a free catalog where every one can put his podcast.
There is a lot of different apps for listening to podcast. These apps synchronize how long you have been listening to a chapter, then they send you a notification when a new chapter is available.
If you have iPhone/iPad you already have the app Podcaster