ATG Launches Advanced Searchandising Capability to Deliver More Relevant Search Results for Online Shoppers.

Enables Merchandisers to Apply Their Strategy to Web Shoppers, Even When Shoppers Use Search Rather Than Site Navigation

CAMBRIDGE, Mass. -- ATG (Art Technology Group, Inc., NASDAQ: ARTG), whose e-commerce suite powers more top online sellers than any other, today announced the launch and general availability of ATG's advanced searchandising capability, providing consumers with a consistent, relevant and optimized site search experience, and merchants with a streamlined and powerful tool for driving sales and increasing conversion rates. By combining the power of its leading personalization platform with ATG Merchandising and ATG search, ATG's advanced searchandising provides e-sellers with the power to control promotional actions within search results for unique presentations to consumers, giving shoppers the products they seek more quickly and efficiently.

More and more, online shoppers are forgoing traditional site navigation defined by merchants in favor of the site search box. According to research firm Trinity Insight, when first arriving on the home page of an e-commerce site, 40 percent of shoppers immediately use the site's search engine. Unfortunately, most consumers have been trained by Internet search engines to simply input a generic key word or product category, which often results in a long list of potential search results that can overwhelm shoppers and leave them yearning for other, more organized options.

Taking advantage of the information an online seller already has about a particular customer, ATG's advanced searchandising more quickly connects those customers to the products they are looking for by allowing online sellers to use merchandising techniques within search. These techniques include search configurations that are tailored to segments or personas and that allow a merchandiser to configure:

* Search terms that redirect customers to specific web pages

* Property weightings on any product attribute (price range, availability, style, etc.) that control the positioning of search results

* Product exclusion lists that prevent certain products from being returned in search results

* Explicit results positioning based on search terms

For example, if a "fashion" segment shopper enters "sweaters" into the site search box, a merchandiser could choose to present new cashmere sweaters at the top of the search results, whereas a "bargain" shopper would see sweaters on sale after entering the same search term. The shopper's segment could be determined by previous online purchases or from external marketing data and a first-time "anonymous" shopper could be targeted based on page-view behavior.

"Some of our customers offer thousands or even hundreds of thousands of products on their Web sites, placing a significant onus on them to help consumers find what they want, quickly and efficiently. ATG's advanced searchandising capability enables merchants to use their existing knowledge about their customers to present search results that best match their needs," said Cliff Conneighton, senior vice president, ATG. "This results in increased conversion rates and more satisfied and loyal customers."

About ATG

ATG (Art Technology Group, Inc., NASDAQ: ARTG) makes the software and delivers the on demand solutions that the world's most customer-conscious companies use to power their e-commerce web sites, attract prospects, convert them to buyers and ensure their satisfaction so they become loyal, repeat, profitable customers. Our e-commerce suite is ranked the #1 current offering and #1 in strategy by the industry's most influential analyst firms, and powers more of the top 300 internet retailers than any other vendor. Our eStara brand provides customer interaction solutions to enhance conversions and customer support, and delivers the world's most widely used click-to-call service. ATG's solutions are used by over 900 major brands, including Amazon, American Eagle Outfitters, AOL, AT&T, Best Buy, B&Q Cabela's, Carrefour, Cingular, Coca Cola, Continental Airlines, CVS, Dell, DirecTV, El Corte Ingles, Expedia, France Telecom, Harvard Business School Publishing, Hewlett-Packard, Hilton, HSBC, Intuit, J. Crew, Macy's, Meredith, Microsoft, Neiman Marcus, New York & Company, Nokia, OfficeMax, PayPal, Philips, Procter & Gamble, Sears, Sony, Symantec, Target, T-Mobile, Urban Outfitters, Verizon, Viacom, Vodafone and Walgreens. The company is headquartered in Cambridge, Massachusetts, with additional locations throughout North America and Europe. For more information about ATG, please visit www.atg.com.

(c) 2007 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.