There are also several musicians participating. The more active among them post photos and videos, stories, and so on. It's a young network with lots of potential, but for now, some folks are less than impressed. A recent update to iTunes put Ping in your music library (it used to be limited to the iTunes Store) and added a big 'ol sidebar.
Our question to you is: are you using it? I'll admit that my interest has waned, and that's because nearly all of the updates I see are of the "[Person X] is now following [Person Y]" variety, which isn't very interesting. Perhaps if the artists I followed were a bit more active, I might use it more.
Am I the only one? Complete our short poll below and let us know if you're using Ping. We'll post the results at a later time.