PHILADELPHIA and LONDON, March 3 /PRNewswire/ --

- Free Web Environment Provides Rankings, Trends and Analysis From Around 
the Scientific Community

Thomson Scientific, part of The Thomson Corporation (NYSE: TOC; TSX: TOC)
and leading provider of information solutions to the worldwide research and
business communities, today announced the launch of ScienceWatch.com, a free,
open Web resource for science metrics and analysis.

ScienceWatch.com combines the newest Science Watch newsletter material
and regularly updated data, analysis, interviews, and commentary that had
been previously found in In-Cites and ESI Special Topics. The website
provides the scientific community a convenient location for keeping up with
the latest developments in science -- what the leading scientists have to
say, how the hottest topics are affecting research and everyday life, where
the most significant research is taking place, and much more.

"The database provides an unbiased way to survey the scientific landscape
and spot features that are newsworthy and significant, including new topics,
new developments, new trends," said Henry Small, chief scientist at Thomson
Scientific. "Then we dig deeper and interview the scientists involved. So
when you access sciencewatch.com, you're accessing the scientific community
and discovering their perspectives and insights."

In addition to the weekly updates, users will be able to see the current
issue of Science Watch immediately. Meanwhile, the existing, premium Science
Watch/Hot Papers Database subscription package--including the print edition
and the accompanying Hot Papers CD with its store of updated, searchable data
on thousands of recent, highly cited papers--will still be supplied for
current and prospective subscribers.

"Thomson Scientific is the first to provide such a robust Web
environment," said Christopher King, editor of Science Watch.
"ScienceWatch.com will be a resource to not only the bibliometric community,
but anyone remotely connected to any science, research or evaluative field."

About The Thomson Corporation

The Thomson Corporation (www.thomson.com) is a global leader in providing
essential electronic workflow solutions to business and professional
customers. With operational headquarters in Stamford, Conn., Thomson provides
value-added information, software tools and applications to professionals in
the fields of law, tax, accounting, financial services, scientific research
and healthcare. The Corporation's common shares are listed on the New York
and Toronto stock exchanges (NYSE: TOC; TSX: TOC).

Thomson Scientific is a business of The Thomson Corporation. Its
information solutions assist professionals at every stage of research and
development--from discovery to analysis to product development and
distribution. Thomson Scientific information solutions can be found at
scientific.thomson.com.

Web site: http://www.scientific.thomson.com
              http://www.thomson.com
              http://ScienceWatch.com