OfficeMax Selects Wisdom-Enabled ATG Customer Experience Platform; Leading Office Supply Distributor Selects ATG for Wisdom-Enabled Marketing, Commerce, and Service Solutions

Business Wire, Feb 13, 2006

CAMBRIDGE, Mass. -- ATG (Art Technology Group, Inc. NASDAQ: ARTG), whose technology powers outstanding e-commerce sites and corresponding e-marketing and customer service solutions, today announced that OfficeMax(R), a leader in both business-to-business office product solutions and retail office products, has selected the ATG Customer Experience Platform for its online storefronts. OfficeMax has purchased and will utilize elements of the entire Platform, which includes applications for marketing, commerce, and customer service.

ATG Wisdom is the alternative to the traditional silo-based approach to commerce, marketing and service/support offered by many vendors. Whether it's a request for information, service, or support, an online transaction or an outbound campaign, Wisdom's holistic, enterprise-wide approach to guiding customer interactions enables organizations to deliver the right mix of information, at the right time, using the preferred communications channel.

"ATG is thrilled that OfficeMax has chosen our solutions to drive their next-generation customer experience," said Cliff Conneighton, senior vice president of marketing, ATG. "ATG Marketing, Commerce, and Service provide the most comprehensive online solution on the market, and we're well positioned to partner with OfficeMax and achieve even greater levels of success."

About OfficeMax

OfficeMax is a leader in both business-to-business and retail office products distribution. OfficeMax delivers an unparalleled customer experience -- in service, in product, in time savings, and in value -- through a relentless focus on its customers. The company provides office supplies and paper, print and document services, technology products and solutions, and furniture to large, medium and small businesses and consumers. Prior to the actions discussed in this press release, OfficeMax customers are served by approximately 40,000 associates through direct sales, catalogs, Internet and approximately 950 superstores. OfficeMax trades on the New York Stock Exchange under the symbol OMX. More information can be found at http://www.officemax.com.

About ATG

ATG (Art Technology Group, Inc., NASDAQ: ARTG) delivers innovative software to help high-end consumer-facing companies create a richer, more adaptive interactive experience for their customers and partners online and via other channels. ATG has delivered category-leading e-business solutions to many of the world's best-known brands including Best Buy, Kingfisher, Neiman Marcus, Target, Friends Provident, Merrill Lynch, Wells Fargo, A&E Networks, Warner Music, AT&T Wireless, France Telecom, Philips, Procter & Gamble, Hewlett-Packard, American Airlines, InterContinental Hotels Group, US Army, and US Federal Aviation Administration. The company is headquartered in Cambridge, Massachusetts, with additional locations throughout North America, Europe, and Asia. For more information about ATG, please visit www.atg.com.

(C) 2006 Art Technology Group, Inc. ATG and Art Technology Group are registered trademarks, and ATG Wisdom is a trademark of Art Technology Group, Inc. 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 its 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 the possibility that the ATG product deployment will not be successful, on time or significantly enhance the user's Internet experience or will not increase customer revenue across brands; that those customers leveraging ATG will not have the opportunity to increase revenue and decrease future costs; the need to adapt to rapid changes so products do not become obsolete; the possibility of errors in ATG's software products; the possibility that the solution will not make customer implementations faster or more flexible or permit the customer to meet its customer-facing or infrastructure requirements; that the ATG product will not continue to be integrated with third party applications servers or will not support all Web services enabled systems; that ATG's product strategy may change in the future; and the risks and costs of intellectual property litigation. ATG undertakes no obligation to update any of the forward-looking statements after the date of this press release.