Arbitron/Edison Media Research Study Reveals That; Webcast Audience Exceeds Fifty Percent of Internet Users.

Business Editors

NEW YORK--(BUSINESS WIRE)--Aug. 22, 2001

For the First Time, the Monthly Audiences to Internet-Only

Audio Sources and Radio Station Webcasts are Equal

The percentage of Internet users who have ever tried streaming media has crossed the 50 percent threshold according to a new Internet Study by Arbitron Inc. (NYSE:ARB) and Edison Media Research.

The "Internet VII: The Internet & Streaming: What Consumers Want Next" study finds that, as of July 2001, the number of "Streamies" - those who have watched or listened to streaming media online - has risen to 52 percent of online Americans. More than a third (34 percent) of all Americans aged 12 and older are classified as Streamies which is approximately 78 million people.

"It is very encouraging to see that consumers are tuning to webcasts in record numbers," said Bill Rose, vice president and general manager, Arbitron Webcast Services. "The continued audience growth should provide confidence in webcasting's great potential despite the inevitable bumps in the road experienced by all new media."

The study also reveals that the amount of time consumers spend listening to sources of audio that are available only on the Internet, now equals the amount of time consumers listen to radio station webcasts each month.

Listening to Internet-only audio has tripled since July 1999, with one-sixth (15 percent) of all Americans having ever tuned into an Internet-only channel. In addition, 12 percent of Internet users say they have listened to Internet-only audio channels and radio station webcasts on a monthly basis.

"Radio stations that stopped streaming may have spurred the growth of Internet-only channels by driving their audience to alternative sources of online audio," said Larry Rosin, president, Edison Media Research. "More than half (55 percent) of the listeners who tuned online to a radio station that later stopped its webcast say they have found other sources of Internet audio to take its place."

Other issues addressed by this study are:

-- when Streamies first began tuning to online audio and video;

-- consumer interest in streaming media subscription models; and

-- how the Internet has changed consumer media habits.

These facts are a preview of the findings from the upcoming Arbitron/Edison Media Research study, "Internet VII: The Internet & Streaming: What Consumers Want Next." The full study will be released at the NAB Radio Show 2001 conference in New Orleans, La., on September 5, 2001. Since 1998, Arbitron and Edison Media Research have conducted seven groundbreaking studies of the Internet and streaming media, one every six months.

The findings reported here are based on a July 2001 survey. The study, by Edison Media Research, consists of 2,507 telephone interviews of Arbitron's Spring 2001 radio diary keepers. The diary-based sample was drawn as a national random sample of persons 12 and over.

About Edison Media Research

Edison Media Research conducts survey research and provides strategic information to radio stations, television stations, newspapers, cable networks, record labels, Internet companies and other media organizations. Edison Media Research is the fastest growing market research company in America over the past five years according to Advertising Age. Edison Media Research works with many of the largest radio ownership groups and also conducts strategic and perceptual research for a broad array of companies including AOL, Yahoo!, CBS, CNN, Entertainment Weekly, The Golf Channel, Court TV, Island Records, Maverick Records, The Cleveland Cavaliers, The Orlando Magic, Princeton University, Sony Music, The Blackstone Group and Time-Life Music. Edison Media Research also conducts research for successful radio stations in South America, Africa, Asia, Canada, and Europe. For more information about Edison Media Research, contact Jason Hollins, Edison Media Research, 6 West Cliff Street, Somerville, N.J. 08876; telephone [phone] or visit: www.edisonresearch.com.

About Arbitron

Arbitron Inc. (NYSE: ARB) is an international media and marketing research firm serving radio broadcasters, cable companies, advertisers and advertising agencies in the United States and Europe. Arbitron's core businesses are measuring network and local market radio audiences across the United States; surveying the retail, media and product patterns of local market consumers; and providing application software used for analyzing media audience and marketing information data. Arbitron Webcast Services measures the audiences of audio and video content on the Internet, commonly known as webcasts. The Company is developing the Portable People Meter, a new technology for radio, TV and cable ratings.

Arbitron's marketing and business units are supported by a world-renowned research and technology organization located in Columbia, Maryland. Arbitron has approximately 750 full-time employees; its executive offices are located in New York City. Through its Scarborough Research joint venture with VNU Media Measurement & Information, Arbitron also provides media and marketing research services to the broadcast television, magazine, newspaper, outdoor and online industries.

This press release is available on the Arbitron Web site at www.arbitron.com and the KCSA Web site at www.kcsa.com. You may register to receive Arbitron's future press releases or to download a complete Digital Investor Kit(TM) including press releases, regulatory filings and corporate materials by clicking on the "Digital Investor Kit" icon at www.kcsa.com.

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. The statements regarding Arbitron in this release that are not historical in nature, particularly those that utilize terminology such as "may," "will," "should," "likely," "expects," "anticipates," "estimates," "believes" or "plans," or comparable terminology, are forward-looking statements based on current expectations about future events, which Arbitron has derived from the information currently available to it. These forward-looking statements involve known and unknown risks and uncertainties that may cause our results to be materially different from results implied in such forward-looking statements. These risks and uncertainties include whether we will be able to:

-- realize the benefits we expect to achieve from our spin-off

from Ceridian Corporation;

-- successfully execute our business strategies, including timely

implementation of our Portable People Meter and our Webcast

Ratings services, as well as expansion of international

operations;

-- benefit from further consolidation in the radio industry; and

-- keep up with rapidly changing technological needs of our

customer base, including creating new products and services

that meet these needs.

Additional important factors known to Arbitron that could cause forward-looking statements to turn out to be incorrect are identified and discussed from time to time in Arbitron's filings with the Securities and Exchange Commission, including in particular the risk factors discussed under the caption "ITEM 1. BUSINESS - Business Risks" in our Annual Report on Form 10-K, which discussion is incorporated herein by reference.

The forward-looking statements contained in this release speak only as of the date hereof, and Arbitron undertakes no obligation to correct or update any forward-looking statements, whether as a result of new information, future events or otherwise.