Hey, young world. Here's a story about one measure of the distance hip-hop has traveled in its 50 years. Once upon a time, not long ago, to paraphrase a great rap storyteller, an 11-year-old in Queens ...

If you’re within a certain age bracket, you’ll remember the news being delivered with grave certainty: The iPod is going to end the album as we know it. Yet for as many 99-cent songs as were purchased ...