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Dialog Names Libby Trudell Senior Vice President, Information Professional Market Development

MOUNTAIN VIEW, Calif., April 26, 2001 — Dialog, a leading provider of online-based information services and a subsidiary of The Thomson Corporation (TSE:TOC), today named Libby Trudell senior vice president, information professional market development.

In this newly established role, Trudell coordinates and champions all Dialog programming to the information professional and librarian marketplace on a worldwide basis. This includes managing the re-launched Quantum² professional development program; supporting ongoing high-level contacts with library associations, including the Special Libraries Association (SLA); enriching Dialog educational programs at library schools; and establishing Dialog customer advisory boards. Her team also provides input regarding needs of the information professional market to assist with product and content development, strategic marketing, sales, and pricing.

Trudell has more than 25 years experience in the information industry. Since joining Dialog in 1983, she has served in numerous roles, including vice president, product management; vice president, strategic planning; senior director, product marketing; director of marketing and customer services; and marketing manager.

Prior to joining Dialog, Trudell had seven years experience in such positions as customer support, training and marketing for electronic information services including OCLC and RLIN, and overseeing a variety of library automation products. Her career began at the Massachusetts Bureau of Library Extension, administering funding for federal library grants.

Trudell is an active member in SLA, having held roles including chair of the strategic planning committee and of the virtual section for the ITE division, and is currently a director of the San Andreas chapter. She has also served on the editorial board of the Journal of Library Automation and Library HiTech, and has published numerous articles and papers on the information industry.

Trudell holds a Masters in Library Science from Simmons and a BA from Tufts University. She will continue to be based in Mountain View, Calif.

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About Dialog
Dialog is the worldwide leader in providing online-based information services to organizations seeking competitive advantages in such fields as business, science, engineering, finance and law. Its products and services, such as Dialog®, Profound® and DataStar™, offer organizations the ability to precisely retrieve data from more than 800 million unique records, accessible via the Internet or through delivery to enterprise Intranets. For almost three decades, Dialog's brands have been known for their breadth and depth of content, precision searching and speed. The Winter Corporation recently recognized Dialog for its breadth and depth of content when they named the company the Grand Prize-winner in the Database Scalability Program 2000.

Headquartered in Cary, N.C., USA, with direct operations in 30 countries, Dialog products are used by more than 20,000 corporate customers in over 100 countries. Dialog is a subsidiary of The Thomson Corporation, a leading global e-information and solutions company in the business and professional marketplace with 2000 revenues of approximately $6 billion. The Corporation's common shares are listed on the Toronto (TSE:TOC) and London stock exchanges.

For more information about Dialog, call 1-800-3-DIALOG or visit www.dialog.com. For more information about Thomson, visit www.thomson.com.

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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, U.S. Patent and Trademark Office. All other marks are trademarks or registered trademarks of their respective owners.

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