I prefer reading to listening as a way of taking in information. I’m better at staying focused when I’m looking at information, and I like being able to take in the content at my own pace, (and being able to check back, when I forget things, as I often do). I think this is why I’m not a personally a big user of podcasts and audio-books.
One of the advantages of podcasts though is that you can actually hear a person’s voice. This is particularly nice in the case of podcasts that relate to history, such as Bob Chalmer’s podcast about growing up and living in the Moonee Valley area (from the MVCC website).