ATG Provides Movielink With Web Storefront for Online Video Rental; Online Movie Download Service Utilizes ATG Commerce for Scalability, Reliability.

Business Editors/High-Tech Writers

CAMBRIDGE, Mass.--(BUSINESS WIRE)--March 4, 2003

ATG (Art Technology Group, Inc., Nasdaq: ARTG), a leading developer of online marketing, sales and service solutions for global consumer-facing organizations, today announced the company's role in the online movie download service launched by Movielink, LLC. The service, available at www.movielink.com, offers broadband Internet users the opportunity to rent a wide selection of feature-length major motion pictures. Movielink is using ATG to power its online storefront.

Leveraging ATG Commerce, Movielink's online storefront enables users to choose from an extensive selection of recently released films, as well as content from film libraries spanning a wide range of genres -- action, classics, comedy, drama, family, romance, sci-fi and thrillers. ATG's scalable architecture withstood Movielink's heavy traffic during the site's soft launch in November 2002, registering zero downtime for subscribers.

"Movielink is a legitimate online distribution platform for delivering quality movies via the Internet, enabling users to enjoy blockbuster hits in their home environment," said Bryan Spaulding, vice president of engineering for Movielink. "With the momentum of the launch and the heavy traffic we have been receiving, it was imperative that there was no downtime and ATG delivered, providing excellent scalability and performance during the Movielink launch. Furthermore, we're excited to upgrade our infrastructure onto the new ATG 6 platform and enrich the Movielink service offering with its enhanced feature set."

Movielink plans to adopt additional ATG functionality - such as ATG Publishing - to enhance and streamline workflow, a unified web-based UI, and a real-time data feed. In the future, Movielink plans to utilize ATG Scenario Personalization(SM) to enhance merchandising slots and customize movie offerings based on user preferences.

"The potential for online commerce in the arts and entertainment industry is a largely untapped market," said Victor Cheng, senior director of product marketing, ATG. "The scalability and reliability of ATG Commerce is a perfect solution for Movielink as the site experiences huge traffic, especially around new releases."

About Movielink

Movielink, LLC (www.movielink.com) is the online movie rental service offering U.S. broadband customers an extensive selection of recently released films as well as content from film libraries spanning a wide range of genres -- action, classics, comedy, drama, family, romance, sci-fi and thrillers.

About ATG

ATG (Art Technology Group, Inc.) is a leading developer of online marketing, sales, and service solutions for global consumer-facing organizations. 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 WellsFargo. 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. ATG and Art Technology Group are registered trademarks of Art Technology Group, Inc. and Scenario Personalization is a service mark. 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 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 business generally may be found in periodic reports and registration statements filed with the Securities and Exchange Commission. Risk factors related to the subject matter of this press release include the possibility that the ATG product deployment will not be successful, significantly enhance the user's Internet experience or handle user volume; that it will not maintain or enhance the customer's brand; that it will not enhance the user's markets, products or services; that it will not enhance user's communications with it's customers; the need to adapt to rapid changes so products do not become obsolete; the possibility of errors in ATG's software products; the risks and costs associated with intellectual property and other litigation; and the possibility that the solution will not make customer implementations faster and more flexible. ATG undertakes no obligation to update any of the forward-looking statements after the date of this press release.