Arbitron and Entercom Communications Corp. Sign Multi-Year Agreement for Portable People Meter Radio Rating Services.

Agreement includes 64 stations in 14 PPM markets

NEW YORK -- Arbitron Inc. (NYSE: ARB) today announced that Entercom Communications Corp. (NYSE: ETM), one of the five largest radio groups in the United States, has signed a multi-year contract for Portable People Meter radio ratings services. The agreement takes effect as the new audience ratings technology is commercialized in each of 14 markets encompassed in Arbitron's current PPM rollout plan: Austin, Boston, Denver, Greensboro-Winston Salem-High Point, Indianapolis, Kansas City MO, Memphis, Milwaukee, Norfolk, Portland OR, Providence, Sacramento, San Francisco, and Seattle.

The agreement covers all 64 stations owned by Entercom in the radio markets scheduled to convert to PPM measurement by the end of 2010.

"The Arbitron Portable People Meter is reporting that an average radio station reaches twice as many listeners as the diary has been telling us," said David Field, President and CEO, Entercom Communications. "If the New York Times were to discover that its readership was twice as large as everyone thought, they would likely stage a parade down Madison Avenue. Radio should not pass up any opportunity to remind advertisers that we are a reach medium, one that offers marketers the most cost effective opportunity to expose more of their consumers to their advertising messages."

Over the next three years, Arbitron is scheduled to deploy the Portable People Meter in the top 50 markets in place of the paper diary method that the company has used to collect radio audience estimates since 1965.

About Entercom Communications

Entercom Communications Corp. (NYSE: ETM) is one of the five largest radio broadcasting companies in the United States, with a nationwide portfolio of 110 stations in 23 markets, including San Francisco, Boston, Seattle, Denver, Portland, Sacramento and Kansas City.

Known for developing unique and highly successful, locally programmed stations, Entercom is home to some of radio's most distinguished brands and compelling personalities. The company is also the radio broadcast partner of the Boston Red Sox, Boston Celtics, Kansas City Royals, New Orleans Saints and Buffalo Sabres.

Entercom focuses on creating effective integrated marketing solutions for its customers that incorporate the company's audio, digital and experiential assets. Additionally, the company has a long-standing commitment to responsible corporate citizenship and environmental stewardship. Entercom stations play a vital, hands-on role in improving their communities, providing over $100 million in annual support for local charitable organizations.

The company's radio stations have received numerous awards, including multiple Edward R. Murrow Awards for excellence in broadcast journalism and National Association of Broadcasters (NAB) Marconi Awards for excellence in radio broadcasting. In 2007, Forbes magazine named Entercom one of America's "Most Trustworthy Companies."

For more information, please visit www.entercom.com.

About Arbitron

Arbitron Inc. (NYSE: ARB) is a media and marketing research firm serving radio broadcasters, cable companies, advertisers, advertising agencies and outdoor advertising companies. 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 has developed the Portable People Meter (PPM(TM)), a new technology for media and marketing research.

Arbitron's marketing and business units are supported by its research and technology organization, located in Columbia, Maryland. Arbitron has approximately 2,100 employees; its executive offices are located in New York City.

Through its Scarborough Research joint venture with The Nielsen Company, Inc. (formerly VNU), Arbitron also provides media and marketing research services to the broadcast television, newspaper and online industries.

Portable People Meter([TM]) and PPM([TM] )are marks of Arbitron Inc.

Arbitron Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. The statements regarding Arbitron Inc. and its subsidiaries ("we," "our," "Arbitron" or the "Company") 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, in no particular order, whether we will be able to:

* successfully implement the rollout of the Portable People Meter service;

* renew contracts with large customers as they expire;

* successfully execute our business strategies, including entering into potential acquisition, joint-venture or other material third-party agreements;

* effectively manage the impact of any further ownership shifts in the radio and advertising agency industries;

* respond to rapidly changing technological needs of our customer base, including creating new proprietary software systems and new customer products and services that meet these needs in a timely manner;

* successfully manage the impact on our business of any economic downturn generally and in the advertising market in particular;

* successfully manage the impact on costs of data collection due to lower respondent cooperation in surveys, privacy concerns, consumer trends, technology changes and/or government regulations;

* successfully design, recruit, and maintain PPM panels that appropriately balance research quality, panel size and operational cost;

* successfully develop and implement technology solutions to measure multi-media and advertising in an increasingly competitive environment; and

* successfully obtain and/or maintain Media Rating Council accreditation for our audience measurement services.

Additional important factors known to Arbitron that could cause actual results to differ materially from our forward-looking statements 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 1A. RISK FACTORS" in Arbitron's Annual Report on Form 10-K for the year ended December 31, 2006.

The forward-looking statements contained in this document 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.