CAMBRIDGE, Mass.-- Art Technology Group, Inc., NASDAQ: ARTG), the top-ranked e-commerce platform and optimization services provider, today announced it has entered into a partnership with Publicar, a division of Carvajal, to make eStara Click to Call technology available to advertisers throughout its Web site. Using Click to Call, consumers connect immediately with Publicar advertisers over the phone.

“Each country we provide services to has its own unique needs, so we pride ourselves in offering the best selection of marketing tools available for advertisers throughout Latin America,” said Sergio Quijano, General Manager, Publicar. “Click to Call is an effective method for helping advertisers communicate with consumers and close sales quickly.”

A recent Forrester report stated that proximity and immediacy are two leading variables that local search and directory customers utilize to make purchasing decisions. Because of these facts, online directories like Publicar are increasingly making tools like Click to Call available to assist advertisers in catching these fast-moving customers. Quick, easy connections made by Click to Call customers are a proven method to drive online revenues and increase advertisers’ ROI.

“Across the globe, the universal constant for local businesses is the voice channel’s ability to alleviate customer concerns and generate sales,” said Shari Solis, vice president, media for ATG’s eStara services. “By integrating eStara Click to Call, Publicar is evolving to meet its customers’ marketing needs.”

About Publicar
Publicar is the leading telephone directory publisher in seven countries across Latin America, including: Colombia, Panama, Nicaragua, El Salvador, Gutemala and Brazil. It provides online directory service to 15 countries in Latin America with its Spanish and Portuguese sites being the most highly trafficked in the region. Publicar has specialized in satisfying the needs of consumers looking to connect with businesses in their preferred electronic format. In addition to telephone directories, Publicar has a diversified portfolio of information technology and commerce solutions for businesses, including Contact Center Americas, PaginasAmarillas.com, intelligent contact and vertical products.

About ATG
ATG (Art Technology Group, Inc., NASDAQ: ARTG) provides the e-commerce platform and e-commerce optimization services 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 of e-commerce optimization services - including the world's most widely used click to call offering - dramatically increase conversions and order size and enhance customer support. ATG's solutions are used by over 900 major brands, including AT&T, Best Buy, Bulgari, Coca Cola, Continental Airlines, CVS, Dell, Diane von Furstenberg, DirecTV, eLuxury, El Corte Ingles, Expedia, France Telecom, Harvard Business School Publishing, Hewlett-Packard, Hilton, HSBC, Intuit, Jenny Craig, Louis Vuitton, Macy's, Mercedes Benz, Meredith, Microsoft, Neiman Marcus, New York & Company, NutriSystem, OfficeMax, PayPal, Philips, Procter & Gamble, Sears, Sony, Symantec, Target, T-Mobile, Tommy Hilfiger, Urban Outfitters, Verizon, Viacom, Vodafone and Walgreens.

© 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.

This press release contains forward-looking statements for purposes of the safe harbor provisions under The Private Securities Litigation Reform Act of 1995. Further details on these risks are set forth in ATG's filings with the Securities and Exchange Commission. These filings are available free of charge on a website maintained by the SEC at http://www.sec.gov. Additional risk factors related to the subject matter of this press release include: the possibility that eStara’s product and service deployments will not be successful, on time or significantly enhance the user's Internet experience; the need to adapt to rapid changes so products and services do not become obsolete; the possibility of errors in eStara’s software products and services; the possibility that eStara’s offerings will not enhance its customers’ online sales or otherwise provide the expected benefits to its customers; and the possibility that eStara's product strategy may change in the future. eStara and ATG undertake no obligation to update any of the forward-looking statements after the date of this press release.