Commission Junction, a division of ValueClick, Inc. (Nasdaq: VCLK) and the leading global provider of affiliate marketing solutions, announced today that for the fourth consecutive year it is the affiliate marketing provider of choice for America's largest retail Web sites. Among the retailers listed in The 2009 Internet Retailer Top 500 Guide, 62 percent of those who work with third-party affiliate marketing partners choose Commission Junction – more than all other affiliate marketing providers combined. Commission Junction’s 62 percent market share reflects a steady growth trend since last year, when it claimed 53 percent of the Internet Retailer Top 500 market share.

"We provide so many of the top brands in the Internet Retailer Top 500 with best-in-class affiliate marketing solutions that deliver cost-effective incremental revenue because of our mix of technology and expertise," said Kerri Pollard, General Manager of Commission Junction. “The cost-per-acquisition model of affiliate marketing in which retailers pay only for confirmed sales is particularly attractive for merchants looking for guaranteed return on investment.”

Commission Junction has had proven success in driving affiliate channel revenue for many of the vertical industries represented in the Internet Retailer Top 500, including office supplies, one of the top three growth categories last year and an industry that saw 114 percent year-over-year growth in online sales. In contrast, the 47 percent of the Top 500 retailers in the office supplies category who chose Commission Junction as their affiliate marketing provider achieved 136 percent year-over-year growth in online sales last year while the rest of the category experienced a decline in sales.

Of the ten largest online retailers with third-party affiliate marketing programs, Staples, Dell, Apple, Sears, Newegg and Best Buy partner with Commission Junction.

About Commission Junction

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 clients.

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.