Arbitron Calls Web Ratings ‘Unprecedented’

Arbitron Webcast Ratings measured more than 1,000 Web channels with NetRadio occupying seven of the top 10 spots in September.
The just-released results show NetRadio’s “80s Hits” ranked number one with 248,600 Aggregate Tuning Hours (ATH is the sum total of all hours that listeners tune to a station in a given month.)
KNAC, a heavy metal station, claimed the fourth spot with 213,000 ATH. Virgin Radio, streamed by Ginger Online, ranked number nine with 191,300 ATH and WABC(AM), streamed by RealBroadcast Networks, was number 10 with 188,000 ATH.