Podcasts/IM/Downloadable Audiobooks

I found all three applications to be very useful.  I particularly liked/enjoyed downloadable audiobooks.  I think IM is a good thing if you have a lot of time, but when I am on the computer I need to focus on the task at hand.  I do not really use the internet for entertainment.  I believe a computer course offered to Tinley Park Library patrons would be well-received.  I believe many seniors would welcome the opportunity to learn this.