I only just discovered xm411.com's "What's Playing Now" utility for the PC and it has increased my enjoyment (and use) of XM Radio by an order of magnitude. It's just great to see, at a glance, what's playing on -- for my setup -- 20 different XM Radio channels. It's also a reminder of the incredible variety and depth of the programming. Plus, I now find that I'm checking into more channels, making the experience more active and more satisfying than tuning into a single channel and letting it run all day. I'm sure there are other previous threads about this nifty little utility, but I think another mention can't hurt.