The decline of traditional radio

Greetings. When browsing through the selection of stories today from the International Herald Tribune, I couldn't help but notice the one called U.S. radio companies continue to weaken. Though satellite radio wasn't mentioned as far as numbers of listeners in the past few years, I'd be interested to know where it stands among the regular radio, HD Radio, and the like. I think that until the broadcasters bring radio back to what made it so great initially, it's originality, then we'll continue to see radio numbers decline and alternatives such as HD and Satellite Radio increase. Enjoy.