Comparison of stock prices for selected trade and business information companies, 6/30/04-12/31/03-6/30/03.

COMPARISON OF STOCK PRICES FOR SELECTED TRADE AND BUSINESS
INFORMATION COMPANIES, 6/30/04-1-2/31/03-6/30/03

                        Price on    Price on    % Change
Company                 12/31/03    11/31/04    from 12/31/03

Dow Jones (NY)          $  49.85    $  42.75    - 14.2%
Dun & Bradstreet (NY)      50.71       59.36    + 17.1
Equifax (NY)               24.50       27.62    + 12.7
Gartner (NY)               11.31       11.90    +  5.2
Info. Holdings (NY)        22.10       27.98    + 26.6
Knight-Ridder (NY)         77.37       68.09    - 12.0
McGraw-Hill (NY)           69.92       87.73    + 25.5
Moody's (NY)               60.55       80.75    + 33.4
Pearson (NY)               11.21       11.81    +  5.4
Primedia (NY)               2.83        3.20    + 13.1
Reed (NY)                  33.70       36.83    +  9.3
Rogers (NY)                16.50       24.15    + 46.4
John Wiley (NY)            26.11       33.05    + 26.6
CNET (N)                    6.82        9.32    + 39.7
Reuters (N)                25.35       44.04    + 73.7
Scholastic (N)             33.45       32.94    -  1.50
United Bus. (N)             8.80        8.99    +  2.2
Value Linel (N)            49.90       40.00    - 24.7
Thomson (T)                36.43       34.79    -  4.5
Elsevier (AM)              12.41       13.37    +  7.7
VNU (AM)                   31.56       30.11    -  4.6
Wolters Kluwer (AM)        15.83       19.16    + 21.0
Penton Media (OTCS)         1.36        0.12    - 91.2
Totals:                   678.57      748.06    +  10.27%
DJIA:                    0453.92    10428.02    -   0.02%

                        Price on   % Change
Company                 6/30/03    from 6/30/03

Dow Jones (NY)            43.03    -  0.7%
Dun & Bradstreet (NY)     41.10    + 44.4
Equifax (NY)              26.00    +  6.2
Gartner (NY)               7.58    + 57.0
Info. Holdings (NY)       18.25    + 53.3
Knight-Ridder (NY)        68.93    -  1.2
McGraw-Hill (NY)          62.00    + 41.5
Moody's (NY)              52.71    + 53.2
Pearson (NY)               9.37    + 26.0
Primedia (NY)              3.05    +  4.9
Reed (NY)                 33.69     --
Rogers (NY)               16.05    + 50.5
John Wiley (NY)           26.25    + 25.9
CNET (N)                   5.95    + 56.6
Reuters (N)               17.48    + 51.9
Scholastic (N)            29.78    + 10.6
United Bus. (N)            5.00    + 79.8
Value Linel (N)           49.00    - 22.5
Thomson (T)               31.47    + 10.5
Elsevier (AM)             11.83    + 13.0
VNU (AM)                  30.89    -  2.5
Wolters Kluwer (AM)       12.09    + 58.5
Penton Media (OTCS)        0.59    - 79.7
Totals:                  602.09    + 24.24%
DJIA:                   8985.44    + 16.34%

NY-New York Stock Exchange; N-NASDQ; T-Toronto; AM-Amsterdam. 1-A
one-time dividend of $17.50 per share was paid at the end of May, 2004.