High Definition Radio and New Content Alternatives
A Slashdot reader writes..
"Many people are aware that satellite radio is a viable consumer option thanks to massive marketing campaigns. What many people do not know is that an alternative, High Definition Radio, exists in most major US markets. IBM DeveloperWorks explains how HD Radio works and why the masses may soon be scrambling to adopt this technology and expand it to alternative content as fast as possible."
The article gets into the technical mechanics of how HD Radio works, but it's worth the read. Also, if you go to iBiquity.com, you can see what stations in your area are broadcasting in HD. You may be surprised at the number.