The three biggest online radio networks -- Yahoo's Launchcast Radio, America Online's Radio@AOL and Microsoft's MSN Radio and Windows Media Network -- saw their average U.S. weekday listening audiences grow 177 percent between October 2004 and October 2005, according to the first full year of online radio ratings data provided by Arbitron and comScore Media Metrix.
All ratings data are based on the number of listeners 12 and older who tuned in during an average quarter hour (AQH) on weekdays between 6 A.M. and 7 P.M. Among other networks, Live 365, which began reporting in January 2005, saw its average weekday listening audience grow 127 percent by October, while Clear Channel Online Radio, which began reporting in June, saw a 33 percent increase by October.
Overall, Yahoo Music claims the most AQH listeners, with 445,800 in October 2005, compared with Radio@AOL (312,700); MSN Radio/WindowsMedia.com (168,200); Clear Channel Radio (137,700); and Live 365 (71,300).
All ratings data are based on the number of listeners 12 and older who tuned in during an average quarter hour (AQH) on weekdays between 6 A.M. and 7 P.M. Among other networks, Live 365, which began reporting in January 2005, saw its average weekday listening audience grow 127 percent by October, while Clear Channel Online Radio, which began reporting in June, saw a 33 percent increase by October.
Overall, Yahoo Music claims the most AQH listeners, with 445,800 in October 2005, compared with Radio@AOL (312,700); MSN Radio/WindowsMedia.com (168,200); Clear Channel Radio (137,700); and Live 365 (71,300).