I read that people used to gather around and listen to anyone on the street who would speak when the Roman empire was around. Listening to certain professional speakers I could understand, but the idea of listening to ordinary people expound information just seemed too much of a stretch.
Then in 2004 people started doing podcasts, and professional or not, I found that I listen to quite a few. Listening to ordinary people seems to be okay, as long as they are talking about subjects that I am interested in.
So, not understanding the concept at the beginning, I find it odd to join three freinds and do one myself. You can listen to it here.