infoUSA buys DoubleClick's Email List Services Division.

Business, Technology, Advertising & Media Editors

OMAHA, Neb. & NEW YORK--(BUSINESS WIRE)--March 11, 2002

infoUSA Gains Significant Foothold in Email List Management and

Brokerage Industry;

Transaction Allows DoubleClick to Concentrate on Growing Email

Technology Business

Deal Includes 5 Year Exclusive DARTmail Contract

infoUSA, (Nasdaq: IUSA) the leading provider of proprietary business and consumer databases and sales and marketing solutions, and DoubleClick Inc. (Nasdaq: DCLK), the leading digital marketing solutions company, today announced that infoUSA will buy DoubleClick's email List Services division.

The deal gives infoUSA, parent of Walter Karl, one of the most respected names in the direct marketing field, an entree to the growing email list brokerage and management business, and allows DoubleClick to focus on, and continue to grow, its email technology business. Financial terms of the deal were not disclosed.

Included in the deal is an exclusive five-year technology agreement for DoubleClick's email technology, DARTmail, to deliver the email messages for the List Services business. infoUSA will also become the first customer of DoubleClick's list selector, a DARTmail module that enables list owners and managers to perform real time counts, to reserve inventory, and to present advertiser specific reporting and billing. The list selector module helps list owners better manage and optimize their lists, and allows list renters and advertisers to target and track customized segment audiences from a series of separate lists. During the past year, DoubleClick has acquired two email technology companies and currently has almost 350 people focused on the email technology business.

DoubleClick's email List Services division has 45 branded files and over 40 million opt-in names under management as well as 28 million postal names and addresses.

"This deal catapults us into a leading position in the digital direct marketing arena to complement our leadership in traditional direct marketing," said Vin Gupta, founder and chairman of infoUSA. "We look forward to considerable synergies in our online and offline businesses and anticipate significant growth to both sides of our business."

Ed Mallin, president of Walter Karl commented, "This is a great acquisition for us, the combined talent and expertise of DoubleClick's List Services division and the Walter Karl Interactive team, I believe, will make us the leader in this marketing space. This is one additional piece in Walter Karl's goal to be the preeminent player in the online and offline List Brokerage and List Management arena."

"As evident by our transactions over the last year, DoubleClick is focused on building out its email technology offerings," said Court Cunningham, vice president and general manager of DARTmail. "This transaction allows us to continue to focus on building our technology capabilities while also continuing to serve all email messages for the list services business through our five-year relationship with infoUSA."

About infoUSA

infoUSA (www.infoUSA.com), founded in 1972, is the leading provider of business and consumer information products, database marketing services, data processing services and sales and marketing solutions. Content is the essential ingredient in every marketing program, and infoUSA has the most comprehensive data in the industry, and is the only company to own a proprietary database of 250 million consumers and 14 million businesses under one roof. The infoUSA database powers the directory services of the top Internet traffic-generating sites, including Yahoo! (Nasdaq: YHOO) and America Online (Nasdaq: AOL). Nearly 3 million customers use infoUSA's products and services to find new customers, grow their sales, and for other direct marketing, telemarketing, customer analysis and credit reference purposes. infoUSA headquarters are located at 5711 S. 86th Circle, Omaha, NE 68127 and can be contacted at [phone].

Statements in this announcement other than historical data and information constitute forward looking statements that involve risks and uncertainties that could cause actual results to differ materially from those stated or implied by such forward-looking statements. The potential risks and uncertainties with respect to infoUSA include, but are not limited to, recent changes in senior management, the successful integration of recent and future acquisitions, fluctuations in operating results, failure to successfully carry out our Internet strategy or to grow our Internet revenue, effects of leverage, changes in technology and increased competition. More information about potential factors that could affect infoUSA's business and financial results is included in infoUSA's filings with the Securities and Exchange Commission.

About DoubleClick

DoubleClick is building the infrastructure that makes marketing work in the digital world. Combining media, data, research and technological expertise, DoubleClick allows marketers to deliver the right message, to the right person, at the right time, while helping Web publishers maximize their revenue and build their business online. DoubleClick Inc. has Global headquarters in New York City and maintains 31 offices around the world.