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Dialog Adds Global Records to Domain Names Database

CARY, N.C., USA (June 12, 2003) — Dialog, a Thomson (TSX: TOC; NYSE: TOC) business and a leading worldwide provider of online-based information services and integrated information solutions, said today that it has added top-level, country-specific domain records from more than 100 countries to its Internet Domain Names database.

Country code top-level domains (referred to as "ccTLDs") are those Web addresses ending in an abbreviation for a home country, such as .nl for the Netherlands or .fr for France.

With more than 95 million current and historic Internet domain name records, including detailed information for about 25 million currently active domain names, the Dialog Domain Names database (File 225) is the largest collection of domain name information available from any information vendor in the world.

The new global records give users the ability to research and track the widest possible universe of domain name information. Unlike simple look-up services available on the open Web, the Domain Names database allows Dialog subscribers to search from more than 50 indexed data fields contained in domain registrations, including detailed "Whois" information, such as registrant's name, corporate affiliation, address, phone number and IP addresses.

A domain name is an alphanumeric name or Web address used to identify a particular site on the Internet. The historical records of domain name registrations are important because they enable Dialog users to follow trails of domain registration transfers and changes.

For example, a user might search by a single e-mail address or company name to pinpoint domain names associated with that piece of data, and then track transfers or other changes to that registration.

The Dialog Domain Names Database is available through the online services Dialog®Web, Dialog®Classic and DialogLink®.

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About Dialog and The Thomson Corporation
Dialog, a pioneer in developing the technology behind electronic information retrieval, is the world leader in providing online-based information services to organizations seeking competitive advantages in such fields as business, science, engineering, finance and law.

Today, the online services provided by Dialog — offered through the Dialog®, Dialog Profound®, Dialog DataStar™, NewsEdge and Intelligence Data brands — give users the ability to precisely retrieve data from more than 1.4 billion unique records, accessible via the Internet or through delivery to enterprise intranets. Searchable content includes articles and reports from thousands of real-time news feeds, newspapers, broadcast transcripts and trade publications, plus research reports and analyst notes providing support for financial decision-making, as well as in-depth repositories of scientific and technical data, patents, trademarks and other intellectual property data. Information professionals and end-users at business, professional and government organizations in more than 100 countries prize Dialog services for their depth and breadth of content, precision searching and speed.

Based in Cary, N.C., USA, Dialog has operations in 31 other countries. Dialog (www.dialog.com) is a business of The Thomson Corporation (TSX: TOC; NYSE: TOC). With 2002 revenues of US$7.8 billion, Thomson (www.thomson.com) is a global leader in providing integrated information solutions to business and professional customers.

All designated trademarks used herein are the property of The Dialog Corporation or its subsidiaries. Registered marks are registered by The Dialog Corporation or its subsidiaries with the U.S. Patent and Trademark Office. All other marks are trademarks or registered trademarks of their respective owners.

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