We've found a service called Rdio that's got all sorts of music playable on demand, and at least for a short time, it's free. We've opened an account -- no credit card information was requested -- and are grooving away through our internet browser. A fairly vast musical world is now on seemingly every computer. Alas, the fun is free only for a short time -- then it's $5 a month, or $10 a month if we want to hook our phone into it. It's tempting.

On another front, we've also recently succumbed and uploaded nearly 20,000 songs into the Google Music cloud. What Rdio can't give us, we can give ourselves. It's an amazing time.