LONDON, Jan. 31 /PRNewswire-FirstCall/ --

    Summary

    Month of December

    CMP Media maintains its increased share compared to 2001 - its continuing
titles held a share of 26.1% in December 2002 up from 24.6% in December 2001.
    The business-to-business information technology market as a whole
decreased by 13.4% in advertising page volumes in the month of December
compared to December 2001 and by 52.9% compared to December 2000. CMP Media's
continuing High Tech publications recorded an 8.1% decrease against December
2001 and 41.3% decrease against December 2000.

    Calendar Year to December
    Market share of CMP Media's continuing titles year to date was 28.4% up
from 24.9% in the prior year period.
    The market as a whole decreased by 30.4% compared to the year to December
2001 and by 54.7% compared to the year to December 2000. CMP's continuing
titles, in the year to December 2002, recorded a 20.4% decrease in advertising
page volumes against the year to December 2001 and a 40.7% decrease against
the year to December 2000.

The continuing General Business/New Economy sub-sector declined from an 11.4%
market share in year to date December 2001 to 9.7% in year to date December
2002.

    MARKET SEGMENT - ADVERTISING PAGE VOLUMES

    MONTH OF December 2002
                                                               2002     2001
                  2002    2001    2000    Change    Change    Market    Market
                                         02 vs 01  02 vs 00    Share    Share
                 Pages   Pages   Pages       %         %         %        %
    CMP Media
    Continuing   1,674   1,822   2,852     -8.1%    -41.3%     26.1%    24.6%
    Discontinued     0      94     360                          0.0%     1.3%

    CMP Media
     Total       1,674   1,916   3,212    -12.7%    -47.9%     26.1%    25.9%

    Whole Market
    Continuing   6,413   7,020  11,885     -8.6%    -46.0%    100.0%    94.8%
    B2B Tech
     Publications5,688   6,153   9,786     -7.6%    -41.9%     88.7%    83.1%
    General
     Business/
     New Economy   725     867   2,099    -16.3%    -65.4%     11.3%    11.7%

    Discontinued     0     383   1,740                          0.0%      5.2%
    Total Market 6,413   7,403  13,625    -13.4%    -52.9%    100.0%    100.0%


     CALENDAR YEAR TO December 2002
                                                               2002     2001
                  2002    2001    2000    Change    Change    Market    Market
                                         02 vs 01  02 vs 00    Share    Share
                 Pages   Pages   Pages       %         %         %        %
    CMP Media
    Continuing   23,112  29,036  38,984   -20.4%    -40.7%     28.4%    24.9%
    Discontinued    166   3,102   5,235                         0.2%     2.7%

    CMP Media
     Total       23,278  32,138  44,219   -27.6%    -47.4%     28.6%    27.6%

    Whole Market
    Continuing   80,210 106,675 156,257   -24.8%    -48.7%     98.7%    91.4%
    B2B Tech
    Publications 72,335  93,405 128,527   -22.6%    -43.7%     89.0%    80.0%
    General
     Business/
     New
     Economy      7,875  13,270  27,730   -40.7%    -71.6%      9.7%     11.4%

    Discontinued  1,062  10,056  22,982                         1.3%     8.6%
    Total Market 81,272 116,731 179,239   -30.4%    -54.7%    100.0%   100.0%


    MAJOR CMP TITLES
     December 2002YTD December 2002
                            + Pages      % Change      + Pages       % Change
     Information Week         +6.2           +3.3       -719.4         -20.8
     EE Times                 +3.8           +1.6     -1,140.3         -22.3
     Dr Dobb's                -6.6          -11.1       -277.6         -28.5
     Network Computing       +46.7          +45.1       -226.2         -13.2
     ebn                     -30.1          -24.6     -1,127.9         -40.0
     Network Magazine         +4.6          +10.8       -157.9         -18.3
     CRN                     -81.8          -29.5       -583.9         -18.2
     VAR Business            -17.3          -12.5        -97.1          -6.3

    Source - IMS: Auditor


    NOTES TO EDITORS:

    CMP MEDIA LLC
    CMP Media LLC (http://www.cmp.com) is a leading integrated media company
providing essential information and marketing services to the entire
technology spectrum -- the builders, sellers and users of technology
worldwide. Capitalising on its editorial strength, CMP is uniquely positioned
to offer marketers comprehensive, integrated media solutions tailored to meet
their individual needs.  Its diverse products and services include newspapers,
magazines, Internet products, research, direct marketing services, education
and training, trade shows and conferences, and custom publishing.

    BASIS OF COMPILATION OF STATISTICS
    The statistics, which are the main subject of today's release, are
independently compiled by IMS/Auditor.  The basis of compilation includes:

    -- pages are hand counted and verified by the publishers
    -- regional ads are counted if in over 50% of circulation
    -- house ads are not counted
    -- inserts are counted if bound in publication
    -- the database will continually be updated as more accurate information
       arrives

    All CMP High Tech publications are tracked.
    Note: that these statistics represent only total advertising page volumes
as counted above, they do not represent paid advertising page volumes nor do
they show the revenue yields which the operators in these market segments have
achieved.

    This press release December include statements which are not historical
facts and are considered "forward-looking" within the meaning of Section 27 of
the Securities Act of 1933, as amended.  These forward-looking statements
reflect UBM's current views about future events, business and growth strategy
and financial performance. These forward-looking statements are identified by
their use of terms and phrases such as "believe," "expect," "plan,"
"anticipate," "on target" and similar expressions identifying forward-looking
statements. Investors should not rely on forward-looking statements because
they are subject to a variety of risks, uncertainties and other factors that
could cause actual results to differ materially from UBM's expectations.  UBM
expressly does not undertake any duty to update forward-looking statements.
Management does not attempt to update forecasts unless conditions materially
change.

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