If you'd like a good overview of some of the legislation that made it possible for scams like Enron and Worldcom to happen, and what's being done to prevent it in the future, here's Molly Ivins with an explanation.
Below, I recommended a site whereupon you could learn what popular songs were being used in current commercials. You can learn even more about current commercials (and even view many of them on-line) over at www.ads.com. Thanks to Stuart Kaufman for the tip.