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Mediaplex Releases Behavioral Targeting Advancements

New behavioral targeting capabilities from Mediaplex make it easier for advertisers and agencies to develop, manage and optimize their campaigns

WESTLAKE VILLAGE, Calif. - September 12, 2007 - ValueClick, Inc. (Nasdaq: VCLK), today announced that its Mediaplex technology division has released a series of enhancements to its behavioral targeting platform that significantly simplifies the process for advertisers and agencies to develop, manage, and optimize behavioral targeting campaigns. With this release, Mediaplex has addressed the barriers that have historically challenged behavioral targeting programs, empowering advertisers and agencies with the tools to successfully deploy behavioral targeting and achieve optimal results.

Behavioral targeting is a proven method for increasing response and conversion rates through the delivery of relevant and timely messages. However, these campaigns have historically been difficult to configure, and often require the support of the technology vendor’s professional services organization. The latest enhancements from Mediaplex remove the difficulties, making it fast and easy for advertisers and agencies to execute effective behavioral targeting campaigns. The enhancements to Mediaplex behavioral targeting capabilities include new functionality, simple configuration and innovative campaign management tools.

“Mediaplex’s advanced behavioral targeting capabilities played a large role in our decision to choose the MOJO Adserver solution. We found that the Mediaplex solution is much easier to configure than other providers, and allows us to swiftly execute our behavioral targeting campaigns,” said Tsutomu Matsushima, president of Deeper. “Mediaplex is allowing us to realize our vision for implementing successful behavioral targeting campaigns without having to rely on a professional services group to oversee our campaigns.”

“Mediaplex has a long history of being at the forefront of developing innovative technology for online marketing, and this new behavioral targeting release is the most recent example of that industry leadership,” said Tom Vadnais, chief executive officer of ValueClick, Inc. and general manager of Commission Junction and Mediaplex. “With these enhancements we are empowering marketers and their agencies to take full advantage of the most sophisticated behavioral targeting capabilities available, but in a way that eliminates the complication of needing third-party support.”

About ValueClick, Inc.
ValueClick, Inc. (Nasdaq: VCLK) is one of the world’s largest online marketing services companies, offering comprehensive and scalable solutions to deliver cost-effective customer acquisition for advertisers and robust revenue streams for publishers. ValueClick’s performance-based solutions allow customers to reach their potential through multiple online marketing channels, including affiliate and search marketing, display advertising, lead generation, ad serving and email technology, and comparison shopping. ValueClick brands include Commission Junction, ValueClick Media, Mediaplex and PriceRunner. 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, 2006 and amendment to its Annual Report on Form 10-K/A filed on April 21, 2006; recent quarterly reports on Form 10-Q and Form 10-Q/A; and other 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.