ATG Commerce Delivers New Power to Dennis Kirk Online Channel.

Business Editors

CAMBRIDGE, Mass.--(BUSINESS WIRE)--Oct. 20, 2003

Power Sports Industry Retailer Leverages ATG to Bring

Personalization and Scalability to its Primary Sales Channel

ATG (Art Technology Group, Inc., Nasdaq: ARTG), a leading provider of innovative software applications for commerce and customer self-service, today announced that Dennis Kirk, a specialty retailer for power sports enthusiasts, has re-launched its online channel using ATG Commerce. The new Web site gives customers instant access to more than 100,000 products for motorcycles, watercraft, ATVs and snowmobiles.

For the one-time catalog sales-driven retailer, the online channel has developed into its primary sales channel. The new ATG-powered site represents a third-generation eCommerce site for Dennis Kirk, which first hit the Web in the mid-1990s. Since the online channel began to hit its stride in 1998, the site has steadily increased its value to the corporate bottom line. As the underlying business value increased, the site began to show its limitations and Dennis Kirk executives recognized the site needed richer functionality and higher scalability.

"In business, it's not often that an organization can see its future so clearly but we had arrived at a juncture where we recognized that eCommerce would be the focal point of our future," said Bob Behan, president and CEO, Dennis Kirk. "By re-launching denniskirk.com on ATG Commerce, we have ensured that the site will continue to grow with the company and we will be able to leverage ATG's personalization capabilities to build long-lasting relationships with our customers."

The site's new design and product categorization enables customers to quickly and easily locate parts and accessories based on specific models or brands. This functionality has allowed Dennis Kirk to narrow down the 100,000-product catalog to only those items that match the search criteria provided by customers. Dennis Kirk has also been able to apply this functionality to its outlet site, which contains recently discontinued items. The new site also allows users to link directly to eBay, where they can bid on return items.

"The online channel demands for companies are growing and organizations need to take steps today to ensure their Web sites will continue to meet the changing demands of their customers," said Phil London, executive vice president of products and technology, ATG. "By choosing to re-launch its site on ATG Commerce, Dennis Kirk has built a platform from which it can begin to realize the full potential of its eCommerce initiatives."

About ATG

ATG (Art Technology Group, Inc.) is a leading provider of innovative software applications for commerce and customer self-service. Customers around the globe rely on ATG for frontline applications that enhance and improve the entire customer lifecycle experience. Deployed on the industry's most popular application servers, ATG's application suites for e-commerce, portals, and relationship management are ideal for integrating online initiatives across the enterprise.

ATG has delivered online solutions to blue-chip companies worldwide including Aetna Services, Alcatel, American Airlines, Barclays Global Investors, Best Buy, BMG Direct, Eastman Kodak, Ford Motor Credit, HSBC, J.Crew, Sun Microsystems, Walgreens, and Wells Fargo. The company is headquartered in Cambridge, Massachusetts, with additional locations throughout North America, Europe, and Asia. For more information about ATG, please visit our Web site at www.atg.com.

(C)2003 Art Technology Group, Inc. ATG and Art Technology Group are registered trademarks of Art Technology Group, Inc. and ATG Commerce and ATG Personalization are its service marks. All other product names, service marks, and trademarks mentioned herein are trademarks of their respective owners.

This press release contains forward-looking statements for purposes of the safe harbor provisions under The Private Securities Litigation Reform Act of 1995. These statements involve known and unknown risks and uncertainties that may cause ATG's actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by such forward-looking statements. Important risk factors affecting ATG's business generally may be found in their periodic reports and registration statements filed with the Securities and Exchange Commission at www.sec.gov. Risk factors related to the subject matter of this press release include, but are not limited to, the possibility that the ATG product deployment will not be successful or significantly enhance the user's Internet experience or handle user volumes; the possibility that the customer may change its catalog based business model, online sales channel or suffer changes in inventory supply that affect the results of its online sales; the possibility that the customer's online channel will not have a material bearing on the customer's bottom line; the possibility that the needs of the customer's end users may change over time; or the possibility that the customer will not continue to see increased business value result from its investments in its online channel. ATG undertakes no obligation to update any of the forward-looking statements after the date of this press release.