More people are listening to online radio than ever.

Yahoo's LAUNCHCast is the leader in total Cume Persons and Average Quarter-Hour Persons over AOL Radio in the latest Arbitron and comScore Media Metrix findings, which show that online radio ratings grew 38% between June 2005 and 2006. Microsoft's MSN Radio, Clear Channel Online Music and Radio and Live365 were next in the six major networks measured by the study.

The weekday average quarter-hour audience for June 2006 is 1,031, 368 people age 12 and older listening Monday-Friday 6 a.m.-7 p.m. The June 2006 audience to the five networks measured below grew from 743,500 in 2005 to 1,022,400 in June 2006 (ESPN Radio was not part of the 2005 survey).

More than six million different people, age 12 and older, tuned to the online radio networks during an average week in June 2006.

The following is Average Weekly Audience in June 2006 Persons 12+ in the U.S. for the six measured networks:

	Monday-Friday 6AM-7PM		Monday-Sunday 6AM-Midnight
	Cume Persons	Average Quarter-Hour Persons	Cume Persons	Average Quarter-Hour Persons
America Online's AOL Radio Network	1,106,100	313,700	1,648,200	195,100
Clear Channel Online Music and Radio	783,500	130,100	906,600	72,700
ESPN Radio	124,000	9,000	186,400	5,000
Live365	515,800	105,900	717,200	60,600
Microsoft’s MSN Radio and WindowsMedia.com	617,700	153,900	825,900	86,000
Yahoo Music/LAUNCHcast	1,505,200	318,800	2,329,300	196,300
TOTAL: All Six Networks	4,415,135	1,031,368	6,295,229	615,717
Total RL Radio Network	4,297,700	1,022,400	6,116,800	610,700
Note: Cume is defined as the number of different people who listen during a given daypart. Cume audience estimates for individual networks should not be added, because people who listen to more than one network will be counted twice. The reported audience for the total of the four networks is an unduplicated estimate of the number of different people who listened to one or more of the networks for a minimum of five minutes during the week.

* ESPN Radio was not part of the measured networks in June 2005. They have been excluded from the comparison which shows an increase in AQH audience of 38 perc