Mediaplex Launches MOJO MediaDirector Media Planning and Buying Tool; Planning and Buying Solution Increases Efficiencies for Both Agencies and Publishers.

CHICAGO -- ValueClick, Inc.'s (Nasdaq: VCLK) Mediaplex division announced today at AD:TECH Chicago the introduction of MOJO MediaDirector, an online media planning and buying solution integrated with its MOJO Adserver third-party ad serving platform. MOJO MediaDirector is an ASP, Web-based tool that offers workflow efficiencies for advertisers, agencies and publishers throughout the entire media buying process -- from site selection to insertion order -- through the automation of request-for-proposals (RFPs), proposals, negotiations and media buys.

Developed through extensive input from advertisers, agencies, ValueClick Media and Web publishers, MediaDirector is the first media planning and buying solution developed to bring greater efficiency to both agencies and publishers.

"MOJO MediaDirector is an example of Mediaplex listening to the marketplace to develop a media workflow solution that truly simplifies media buying and planning for all parties involved," said Tom Vadnais, senior vice president, Mediaplex and Commission Junction. "Because of this valuable input, MediaDirector offers agencies and advertisers an easy-to-use, automated media planning and buying system with features that no other provider on the market offers today."

MediaDirector offers unique, time-saving features, including:

--User-friendly navigation, including the ability to bypass workflow steps and use the browser "Back button" through the planning process;

--Support for managing multiple media plans per campaign;

--Electronic signatures to enable agencies to e-mail PDF-format insertion orders to publishers; and

--Publisher capabilities such as attaching documents to proposals, submitting multiple proposal options, revising proposals after submission, creating packages and direct access to Mediaplex customer support.

"MediaDirector allows us to further leverage the power of MOJO Adserver's real-time reporting and optimization capabilities to generate successful campaigns with greater efficiency," said Sean Cheyney, Director of Marketing of Accuquote.

About ValueClick

ValueClick, Inc. (Nasdaq: VCLK) is the single-source provider of media, technology and related services that enable advertisers, agencies and publishers to reach consumers in all major online marketing channels through three business units:

ValueClick Media (http://media.valueclick.com) provides brand
        advertising and direct marketing solutions for advertisers,
        agencies and publishers. Through its ValueClick Brand,
        ValueClick Direct, ValueClick Search and Web Clients groups,
        ValueClick Media offers marketers a wide range of distribution
        methods, including Web-based advertising, co-registration,
        pay-per-click search and a variety of e-mail marketing
        options.

        ValueClick Media also includes PriceRunner.com
        (www.pricerunner.com), a leading global provider of online
        comparison-shopping services.

        Commission Junction (www.cj.com) provides advanced performance
        marketing solutions that help marketers increase online leads
        and sales. By facilitating strategic relationships between
        advertisers and publishers, Commission Junction leverages its
        proven expertise in affiliate marketing and search marketing
        to drive measurable results for its clients.

        Mediaplex (www.mediaplex.com) provides technology and services
        that help advertisers, agencies and publishers manage their
        online advertising and permission-based e-mail campaigns.
        Additionally, Mediaplex provides the AdVault suite of software
        and services that help advertising agencies and other
        companies operate their businesses more efficiently through
        effective agency management, media management and content
        management solutions.

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

This release contains forward-looking statements that involve risks and uncertainties, including, but not limited to, trends in online advertising spending and estimates of future online performance-based advertising. Actual results may differ materially from the results predicted, and reported results should not be considered an indication of future performance. Important factors that could cause actual results to differ materially from those expressed or implied in the forward-looking statements are detailed under "Risk Factors" and elsewhere in filings with the Securities and Exchange Commission made from time to time by ValueClick, including its Annual Report on Form 10-K filed on March 31, 2005, recent quarterly reports on Form 10-Q and current reports on Form 8-K. Other factors that could cause actual results to differ materially from those expressed or implied in the forward-looking statements include, but are not limited to, the risk that market demand for online advertising, and performance-based online advertising in particular, will not grow as rapidly as predicted. ValueClick undertakes no obligation to release publicly any revisions to any forward-looking statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.