May 17, 2004

Dear Valued Performics Partner and Affiliate,

I am very pleased to announce that Performics has agreed to be acquired by DoubleClick Inc. We are excited to share this news and believe this transaction will be extremely beneficial for your performance-based marketing programs with Performics. At Performics we have prided ourselves since our inception on building world-class offerings in both Affiliate Marketing and Search Engine Marketing. By combining our products and expertise with that of DoubleClick's, our shared clients, partners and affiliates both domestically and internationally will benefit from a premier collection of online advertising and data marketing solutions - now and into the future. Currently, eleven of our top 15 clients are also DoubleClick clients.

DoubleClick Inc. (Nasdaq: DCLK) is the leading provider of marketing tools for advertisers, direct marketers and web publishers to plan, execute and analyze their marketing programs. Performics and DoubleClick share market leadership in the catalog sector and we think this is a dynamite combination of resources for servicing the future needs of online marketers.

Performics will operate as a separate business unit within DoubleClick. Operations for search engine marketing and affiliate marketing will continue to be based in Chicago and we will continue to increase Chicago personnel over the next year.

This acquisition will have no immediate affect on how you do business with Performics; you will continue to work with your current Performics contacts and access your programs the same way you do now. You can find out more about today's announcement in the press release at or .

At Performics we have truly appreciated your business in the past, and we will continue to deliver world-class products and solutions with our new partner.

Warmest Regards,

James (Jamie) Crouthamel,

President and CEO

Performics Inc.