ATG To Host First-Quarter 2008 Conference Call on Thursday, April 24 at 10:00 AM ET

Business Wire, April 3, 2008

CAMBRIDGE, Mass. -- In conjunction with its regularly scheduled first-quarter 2008 financial results news release, ATG (Art Technology Group, Inc., NASDAQ: ARTG) will host its quarterly conference call for investors at 10:00 a.m. ET on Thursday, April 24, 2008. Investors interested in listening to the live or archived webcast should log onto the "For Investors" section of ATG's website located at www.atg.com.

ATG's first-quarter 2008 conference call can also be heard live by dialing (866) 723-3575 (or (706) 634-8872 for international calls) and using conference ID No. 42241246.

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, 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) 2008 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.