SOURCE: eStara

March 13, 2007 10:30 ET

John Federman of eStara Joins Kelsey Group Panel on the Convergence of the Phone With Local Internet Advertising

RESTON, VA -- (MARKET WIRE) -- March 13, 2007 --

Who:    John Federman, CEO, eStara

What:   Although Alexander Graham Bell never had the pleasure of
        searchin for a local business online, his greatest
        invention, the phone, is playing an increasing role in
        how people interact with IYP (internet yellow pages) and
        local search advertisers.  Amongst the phone-enabled
        applications, stakeholders are trying to master how to
        merge the phone with commerce on the Web -- after all, voice
        remains the preferred method of communication for most people.

        In a panel discussion of key industry figures, John Federman will
        discuss the current and future impact of the phone on the growing
        local advertising market.  With many small businesses preferring
        to deal in voice transactions, Federman will point to key eStara
        customers that have successfully bridged buyers and sellers via
        the phone and the benefits that they have received as a result.

        The Kelsey Group predicts that local search is poised to reach
        $2.6 billion in U.S. revenues, while IYP revenues will rise at a
        nearly 30 percent annual growth rate, from $624 million to $2.3
        billion in 2011.  Additionally, a recent study from the firm
        forecasts an increase in average ad conversions of 18 percent.

        The panel, "The Phone's Real Impact on Local Advertising," will
        take place at The Kelsey Group's annual Drilling Down on Local
        conference.

When:   Wednesday, March 21, 2007
        9:30 a.m. - 10:15 a.m. PDT

Where:  Santa Clara, California.  For more information, please visit:
        http://www.kelseygroup.com/drillingdown2007/index.asp
About eStara

eStara is a leading provider of proactive conversion solutions for enhancing online sales. The world's most recognized brands -- including Continental Airlines, DaimlerChrysler, Dell Financial Services, and SuperPages.com -- leverage eStara's OnDemand services to engage customers with the right form of contact at the right time to increase revenue, reduce website abandonment and improve customer satisfaction. eStara is a wholly owned subsidiary of ATG (Art Technology Group, Inc.) (NASDAQ: ARTG). For more information, visit www.eStara.com.

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.

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