According to Nielsen//NetRatings traffic to Apple’s iTunes Web site and use of the iTunes application has skyrocketed 241 percent over the past year, from 6.1 million unique visitors in December 2004 to 20.7 million in December 2005, reaching nearly 14 percent of the active Internet population. Teens are disproportionately represented among iTunes users; 12 to 17 year olds are nearly twice as likely to visit the iTunes Web site and use the application as the average Internet user. iTunes users are also more likely to be male; the site’s traffic is 54 percent male and 46 percent female.

iTunes users form a distinct target audience with identifiable brand preferences they are 2.2 times more likely to own a Volkswagen than the average Internet user, they are 3.3 times more likely than average to read Wired, 2.6 times more likely to read Rolling Stone and 2.5 times more likely to read FHM. When watching television, they flock to the Cartoon Network at 1.4 times the average rate, and to HBO and BBC America at 1.3 and 1.2 times the average rate, respectively.
Via - Netratings