48% of consumers in the U.S. still see radio as the dominant way to discover new music. For almost two-thirds of U.S. teenagers, however, Google’s YouTube is now a more important source of music than radio (54%), iTunes (53%) and CDs (50%). Despite the growing popularity of Internet music services among teens, about a third of them still bought a CD in the last year and among all respondents, 55% said physical CDs are still a very or fairly good value.
From Nielsen’s ‘Music 360’ report (More Teens Now Listen To Music Through YouTube Than Any Other Source). Very interesting findings about teen music consumption. The linked article has a lot more stats.