COMSCORE ARBITRON ONLINE RADIO RATINGS
FREQUENTLY ASKED QUESTIONS

What are comScore Arbitron Online Radio Ratings?
Arbitron Inc., in conjunction with comScore Media Metrix, a division of comScore Networks, Inc., has established a new audience measurement system designed to provide traditional broadcast ratings for the online radio industry. The service provides customers with Average Quarter-Hour and Cume audience estimates for standard dayparts and demographics—similar to AM/FM radio.

How is the audience measured?
The comScore Arbitron Online Radio Ratings service is based on approximately a quarter of a million U.S. residents that are recruited for the comScore global consumer panel. Using proprietary and patent-pending technology, comScore passively and continuously captures the online behavior of these panelists, including online radio listening behavior. To learn more about the methodology, please visit www.comscore.com.

What type of audience estimates does the service produce?
The service provides subscribers and advertising agencies with Average Quarter-Hour and Cume audience estimates for standard dayparts and demographics. This is the first major online radio ratings service to measure people—not computers.

How does an online broadcaster subscribe to the ratings?
Contact Arbitron’s Online Radio Services team. The setup process is simple—just provide Arbitron with the stream URLs for your online radio stations, and comScore will begin crediting the listening to those stations among the panelists.

Why is Arbitron working with comScore?
Arbitron and comScore Media Metrix are the respective leaders in radio and online audience measurement. Arbitron brings more than 50 years of experience measuring radio listening habits and interpreting those findings for advertisers and agencies. comScore Media Metrix is the leader in Internet measurement and has the ability to survey the online radio habits of a very large sample of U.S. residents. Combining Arbitron’s understanding of radio audience measurement with comScore’s technical expertise has resulted in a robust ratings service for online radio.

Can anyone be measured?
comScore Arbitron Online Radio Ratings is a subscription-based service and some technical limitations do apply. Please contact Arbitron’s Online Radio Services team to learn more.