Press Release Details

Webcast Alert: The Thomson Corporation to Report Third-Quarter 2007 Results

October 18, 2007 at 10:00 AM EDT

STAMFORD, Conn., Oct. 18 /PRNewswire-FirstCall/ -- The Thomson Corporation (NYSE: TOC; TSX: TOC) announces the following Webcast:

    Who:       President and CEO Richard J. Harrington and Executive Vice
               President and CFO Robert D. Daleo

    What:      Presentation and Discussion of Third-Quarter 2007 Results for
               The Thomson Corporation

    When:      Thursday, October 25, 2007 @ 8:30 a.m. ET

    Where:     www.thomson.com

    How:       Live over the Internet -- To participate in the webcast, visit
               www.thomson.com and click on "Investor Relations" at the top of
               the page and then "Executive Presentations" at the left side of

               the page.

    Contacts:  Frank Golden, Vice President, Investor Relations
               203-539-8470, frank.golden@thomson.com

               Fred Hawrysh, Global Director, External Communications
               203-539-8314, fred.hawrysh@thomson.com

    The Webcast will be archived at www.thomson.com.

    (Logo:  http://www.newscom.com/cgi-bin/prnh/20020227/NYW014LOGO)

    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).

(Minimum Requirements to listen to broadcast:

The Windows Media Player software, downloadable free from http://www.microsoft.com/windows/default.mspx and at least a 28.8Kbps connection to the Internet. If you experience problems listening to the broadcast, send an email to webcastsupport@tfprn.com.)

SOURCE  The Thomson Corporation
    -0-                             10/18/2007
    /CONTACT:  Frank Golden, Vice President, Investor Relations, +1-203-539-
8470, frank.golden@thomson.com, or Fred Hawrysh, Global Director, External
Communications, +1-203-539-8314, fred.hawrysh@thomson.com, both of The Thomson
Corporation/
    /Photo:  NewsCom:  http://www.newscom.com/cgi-bin/prnh/20020227/NYW014LOGO
              AP Archive:  http://photoarchive.ap.org
              PRN Photo Desk, photodesk@prnewswire.com/
    /Web site:  http://www.thomson.com
                http://www.microsoft.com/windows/default.mspx /
    (TOC TOC.)

CO:  The Thomson Corporation
ST:  Connecticut
IN:  WRK CPR FIN
SU:  CCA

SS-KM
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