What do you listen to during exercise?
I either watch tv or read a book. However, my exercise regime is usually limited to a stationary bike - but only after I finish my "real" mountain bike ride.
I either download music from iTunes, or I use PodRunner (also downloadable from iTunes, but for free).
I get audio books out of the library. Makes the time go really fast. Also, on Saturdays, I listen to "Car Talk" on NPR. Great show!