Arbitron to Revamp Its Internet Broadcast Services; Company To Cease Weekly and Monthly MeasureCast Ratings at the End of March.

Business Editors/High-Tech Writers

NEW YORK--(BUSINESS WIRE)--Feb. 27, 2004

Arbitron Inc. (NYSE: ARB) today announced plans to revamp the offerings of its Internet Broadcast Services division. The company will cease monthly and weekly MeasureCast ratings, which measure the audiences of audio content on the Internet, as of Sunday, March 28, 2004. Arbitron plans to offer a revised service for Internet broadcasters designed to be better aligned with the needs of the market.

"We will continue to document the size and growth of the Internet broadcasting audience through our Internet studies as well as offer consumer lifestyle and shopping data from Scarborough Research," said Bill Rose, vice president/general manager, Arbitron Internet Broadcast Services. "Plus, we plan to offer custom research solutions to help bring Internet broadcasting into advertisers' media plans."

Commenting on today's announcement, Pierre Bouvard, president of Arbitron New Ventures, said: "We remain committed to the Internet broadcast business and continue to believe in the viability of this medium and its long-term market potential. However, the investment needed to sustain the current method would have been far greater than the revenue potential for the service. By revamping our services, we hope to provide better value for our customers and a reasonable return for our investors."

About Arbitron

Arbitron Inc. (NYSE: ARB) is an international media and marketing research firm serving radio broadcasters, cable companies, advertisers, advertising agencies and outdoor advertising companies in the United States, Mexico 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. The Company is developing the Portable People Meter, a new technology for radio, television 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 850 full-time employees; its executive offices are located in New York City.

Through its Scarborough Research joint venture with VNU, Inc., Arbitron also provides media and marketing research services to the broadcast television, cable, 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 document 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 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:

-- renew all or part of contracts with large customers as they

expire;

-- successfully execute our business strategies, including timely

implementation of our Portable People Meter services, as well

as expansion of international operations;

-- effectively manage the impact of further consolidation in the

radio industry;

-- keep up with rapidly changing technological needs of our

customer base, including creating new products and services

that meet these needs;

-- successfully manage the impact on our business of any economic

downturn generally and in the advertising market in

particular; and

-- successfully manage the impact on costs of data collection due

to privacy concerns and/or government regulations.

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.

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