eStara to Launch Click Suite for Interactive Marketers at Ad:Tech San Francisco

Market Wire, April, 2007

eStara, a leading provider of proactive conversion solutions for enhancing online sales and support initiatives, today introduced Click Suite for Interactive Marketers. Based around eStara's industry leading Click to Call technology for the voice enablement of online campaigns, Click Suite for Interactive Marketers couples innovative technology with advanced tracking and reporting features to help interactive agencies build distinct and engaging campaigns, while measuring across channels.

Online marketers are increasingly looking to create campaigns that break through the industry clutter, engage prospects in new ways and generate results. Agencies are leveraging online vehicles -- banner ads, Web sites, emails and search initiatives -- to wring more value from every campaign, elevate prospects from the Web to the phone through embedded click to call buttons or through dynamically generated phone numbers listed in search engine ads.

Integral to Click Suite is the addition of Dynamic Number Replacement, through which advertisers can use unique telephone numbers that map to keywords and publishers for more granular campaign effectiveness data. Click Suite for Interactive Marketers includes:

--  Click to Call -- lets agencies integrate voice into emails, banners,
    micro sites and other promotional activity for increased engagement and
    results.

--  Call Tracking -- enables marketers to provision unique toll-free and
    local telephone numbers, in real-time, to track phone calls from all media,
    including online, print, television and radio.

--  Dynamic Number Replacement (DNR) -- allows advertisers to have
    unprecedented insight into where leads are being generated.  DNR allows
    marketers to track phone calls down to the keyword and search engine that
    delivered the call.

--  Dynamic Call Routing -- With dynamic call routing, calls generated by
    either click to call or call tracking can be routed based on any number of
    variables, including location of caller, hours of business operation, ad
    listing, etc.  National brands can distribute leads to local franchises or
    call centers by geo-targeting where inbound calls are coming from, plus
    eStara's find me/follow me capabilities route calls to multiple phone lines
    to guarantee no lead goes unanswered.

--  Automated Outbound Calling -- Send branded messages to hundreds of
    prospects with the click of a button.

--  Interactive Content Delivery -- Tie online video and interactive
    campaigns to the phone for a truly unique ad experience.

--  Real-Time Reporting and Provisioning -- eStara's WebCare customer
    service portal provides up to the minute dashboard reporting of campaign
    results, and allows marketers to change campaigns on the fly, and conduct
    A/B and multivariate testing of campaigns.
    

"As marketers are tasked with creating multichannel brand experiences, they will need new ways to capture consumers and produce analytic data to identify which campaigns are generating conversions, online and offline," said John Federman, CEO, eStara. "Click Suite for Interactive Marketers offers agencies a full set of tools to engage their audiences and demonstrate ROI across online and phone channels."

Leveraging its experience in building interactive and viral campaigns for such brands as SNCF, McDonald's, Opel, ESPN College Game Day and Comedy Central, eStara's Click Suite for Interactive Marketers is available immediately. eStara representatives will be offering demonstrations of the suite's capabilities at next week's Ad:Tech Conference in San Francisco at booth #5351.

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.