AdValiant Selects Revenue Science for Behavioral Targeting on the MyMedcenter.com Network

Healthcare Media Site Audiences Available for Direct and Network Buys

NEW YORK (October 20, 2005) — Revenue Science, Inc., the global standard in behavioral targeting, announced today that AdValiant, The Dialog Group, Inc.'s (OTCBB:DLGG) interactive group, has selected the company to enable behavioral targeting for The MyMedCenter.com Network, a consumer health site syndicated for media business partners via a large network of television and radio station Web sites.

Through Revenue Science's analysis of audience behaviors, The MyMedCenter.com Network can create targeted audience segments based on individual advertiser and campaign requirements. The agreement will enable advertisers to deliver campaigns on The MyMedCenter.com Network, as well as across the Revenue Science Network™ of Web sites.

"More and more consumers turn to the Internet for healthcare information," said Nick Johnson, senior vice president of business development and general manager of account strategy for Revenue Science. "We're pleased to help The MyMedCenter.com Network connect advertisers with interested consumers more effectively through our advanced behavioral targeting."

The MyMedCenter.com Network, operated by Dialog Group's AdValiant division, is syndicated to a network of media properties including stations affiliated with NBC, Cox Television, Hearst, Post-Newsweek and Scripps Howard.

According to Joshua Lefkowitz, vice president, director of sales at AdValiant, the ability to create new, high-value inventory via behavioral targeting is critical to the Web site's growth. "Television advertising budgets are rapidly moving online and that's particularly true with healthcare," he said. "Working with a leading behavioral targeting provider like Revenue Science will enable us to continue generating great results for advertisers who are seeking ways to run online campaigns efficiently."

About Dialog Group

Dialog Group, Inc. (OTCBB: DLGG - News) provides a suite of technology and data-based solutions that enable marketers to effectively advertise, generate leads, and manage customers. Clients include Novartis AG, Schering-Plough, GlaxoSmithKline, Victoria's Secret, McCormick and Scotts. Headquartered in New York City, the Company has three operating units:

• AdValiant, www.advaliant.com, is a performance marketing network and interactive agency that provides lead and transaction generation, search engine marketing, media buying and publisher representation. AdValiant also offers Adialogin, the first real-time data verification, lead enhancement, and communication technology for the online marketing industry. In addition, the Company operates www.mymedcenter.com, which is syndicated for media business partners via a large network of television and radio Web sites. That network is comprised of 87 media properties including stations affiliated with NBC, Cox Television, Hearst, Post-Newsweek and Scripps Howard.
• Data Dialog provides data services, consumer surveys, lead generation, list management, direct marketing services as well as data compilation and append. The Company develops original systems and tools to facilitate the collection and distribution of data in order to generate business prospect leads, service customers, and streamline processes.
• Dialog Group Communications offers communication services, account services, creative, CRM, and interactive. The Company develops comprehensive advertising and marketing campaigns including print, training materials, patient education, targeted direct mail, sales promotional materials, promotional Web sites, e-mail and e-newsletter campaigns, logo/package design and content creation.