COMPARISON OF STOCK PRICES FOR SELECTED TRADE AND BUSINESS INFORMATION.

                  COMPARISON OF STOCK PRICES FOR SELECTED
                      TRADE AND BUSINESS INFORMATION
                         COMPANIES, 1/1/00-1/1/01
                                              Net    Percentage
Company                    1/1/00   1/1/01   Change    Change
Dow Jones (NY)             $ 68.00  $ 56.63 -$ 11.38  - 16.7%
Dun & Bradstreet (NY)        17.25    25.88 +   8.63  + 50.0
Equifax (NY)                 23.56    28.69 +   5.13  + 21.8
Gartner Group (NY)           15.25     6.90 -   8.35  - 54.8
Information Holdings (NY)    29.06    23.44 -   5.63  - 19.4
Knight-Ridder (NY)           59.50    56.88 -   2.63  -  4.4
McGraw-Hill (NY)             61.63    58.63 -   3.00  -  4.9
Moody's (NY)                 22.22    25.69 +   3.47  + 15.6
Penton Media (NY)            24.00    26.88 +   2.88  + 12.0
Primedia (NY)                16.50    11.94 -   4.56  - 27.7
Rogers Comm. (NY)            24.75    17.00 -   7.75  - 31.3
John Wiley (NY)              16.75    21.50 +   4.75  + 28.4
Cnet (N)                     56.75    16.00 -  40.75  - 71.8
Information Resources (N)     9.25     3.31 -   5.94  - 64.2
Scholastic (N)               62.19    88.63 +  26.44  + 42.5
Value Line (N)               36.00    34.56 -   1.44  -  4.0
VerticalNet (N)              82.00     6.66 -  75.34  - 91.9
Thomson Corp. (T)            25.04    37.82 +  12.78  + 51.1
Torstar (T)                  10.37    13.37 +   3.00  + 28.9
Reed International (L)        7.50    10.20 +   2.70  + 36.0
Reuters (L)                  13.74    16.27 +   2.53  + 18.4
Elsevier (AM)                11.94    14.46 +   2.52  + 21.1
VNU (AM)                     52.53    50.77 -   1.76  -  3.4
Wolters Kluwer (AM)          33.99    27.53 -   6.46  - 19.0
Totals:                   $ 779.76 $ 679.64 -$100.12  - 12.8%
NY-New York Stock Exchange; N-NASDQ;
T-Toronto; L-London; AM-Amsterdam.