MAJOR TRADE AND PROFESSIONAL PUBLICATION, ONLINE AND RELATED PROPERTY ACQUISITIONS, 1999.

                       MAJOR TRADE AND PROFESSIONAL
                      PUBLICATION, ONLINE AND RELATED
                        PROPERTY ACQUISITIONS, 1999
                    (arranged alphabetically by buyer)
Publication/Property             Buyer
Launchspace, NL & Web site       Launchspace Pub/McLean, VA
Caselaw Elec. Publishers         Lexis-Nexis/Dayton, OH
CD Law Inc.                      Lexis-Nexis/Dayton, OH
Newsletter on Newsletters        Marshall, J./Rhinebeck, NY
  Newsletter Design NL
Hippocrates                      Mass. Med Soc./Waltham, MA
Data Video & Projector DB        MCG/Menlo Park, CA
Appleton & Lange                 McGraw-Hill/New York
  eight medical journals,
  books and references
Emerging Market Data             McGraw-Hill/New York
Managed Care Magazine            Medi-Media/Peterbor., NJ
U.S. Housing Markets             Meyers Group/Irvine, CA
Computer Expo                    Miller Freeman/S.F., CA
Continuing Medical Education     Miller Freeman/S.F., CA
  two medical magazines
Fematec Trade Show               Miller Freeman/S.F., CA
Mercofarma Trade Show            Miller Freeman/S.F., CA
Stammer Group                    Miller Freeman/S.F., CA
Tecnomedia Group                 Miller Freeman/S.F., CA
Verecom Group                    Miller Freeman/S.F., CA
  two magazines and
  one related conference
Alabama Law Weekly NL            M. Lee Smith/Brentwood, TN
Hiring/Retaining the Best NL     M. Lee Smith/Brentwood, TN
People Trends NL                 M. Lee Smith/Brentwood, TN
Computer Currents                MSP Comm./Minn., MN
Silicon Valley High Tech         NetUSA/Fremont, CA
Optical Prism                    Nusand Publ./Toronto, ON
computer publishing div.         101comm./Chatsworth, CA
  seven computer magazines
Data Warehousing Institute       101comm./Chatsworth, CA
Microsoft Certified Prof.        101comm./Chatsworth, CA
  conferences and Web sites
Recharger Magazine               101comm./Chatsworth, CA
SIGS Publishing                  101comm./Chatsworth, CA
  seven computer magazines
Syllabus Communications          101comm./Chatsworth, CA
  Syllabus Magazine,
  conferences and seminars
Ullo International               101comm./Chicago, IL
  Application Development Trends
Corp. Tech. Info. Service        OneSource Info/Concord, MA
two medical newsletters          Opus Comm./Marblehead, MA
HealthCare Facilities            Opus Comm./Marblehead, MA
  directories, six weekly e-mail
  letters and three fax weeklies
IQXpert (online)                 PartMiner/New York
Source (online)                  Pearson/London
Advanced Packaging               PennWell/Tulsa, OK
  three other business magazines
KMI Corp.                        PennWell/Tulsa, OK
Latcom Inc. trade shows          PennWell/Tulsa, OK
Potencia                         PennWell/Tulsa, OK
Corporate University Review      Penton/Cleveland, OH
Jon Peddie Associates            Penton/Cleveland, OH
Publication/Property             Seller
Launchspace, NL & Web site       Phillips Bus./Potomac, MD
Caselaw Elec. Publishers         management/Las Vegas, NV
CD Law Inc.                      management/Seattle, WA
Newsletter on Newsletters        Hudson Asso./Rhinebeck, NY
  Newsletter Design NL
Hippocrates                      Time Inc./Sausalito, CA
Data Video & Projector DB        Kahn Int./Wash., D.C.
Appleton & Lange                 Pearson/London
  eight medical journals,
  books and references
Emerging Market Data             World Bank/Wash., D.C.
Managed Care Magazine            Stezzi Comm./Yardley, PA
U.S. Housing Markets             Hanley-Wood/Wash., D.C.
Computer Expo                    CEL/Hong Kong
Continuing Medical Education     management/Irvine, CA
  two medical magazines
Fematec Trade Show               management/Buenas Aires
Mercofarma Trade Show            management/Sao Paolo, Brazil
Stammer Group                    management/Milan, Italy
Tecnomedia Group                 management/Rome, Italy
Verecom Group                    management/Mountain View, CA
  two magazines and
  one related conference
Alabama Law Weekly NL            Dyall Publ./Huntsville, AL
Hiring/Retaining the Best NL     Vista Publ./Sioux Falls, SD
People Trends NL                 Strategy Group/Dublin, OH
Computer Currents                management/Berkeley, CA
Silicon Valley High Tech         US Broadcast/Fremont, CA
Optical Prism                    Vezcom Int./Unionville, ON
computer publishing div.         Boucher Comm./Ft. Wash., PA
  seven computer magazines
Data Warehousing Institute       management/L.A., CA
Microsoft Certified Prof.        QuickStart/Irvine, CA
  conferences and Web sites
Recharger Magazine               Thom. Enerson/Las Vegas, NV
SIGS Publishing                  management/New York
  seven computer magazines
Syllabus Communications          management/San Jose, CA
  Syllabus Magazine,
  conferences and seminars
Ullo International               management/Natick, MA
  Application Development Trends
Corp. Tech. Info. Service        management/Woburn, MA
two medical newsletters          Wentworth/Lancaster, PA
HealthCare Facilities            BNA/Wash., D.C.
  directories, six weekly e-mail
  letters and three fax weeklies
IQXpert (online)                 IHS Group/Englewood, CO
Source (online)                  RMI/Denver, CO
Advanced Packaging               IHS Publ./Libertyville, IL
  three other business magazines
KMI Corp.                        management/Newport, RI
Latcom Inc. trade shows          management/Miami, FL
Potencia                         ITP, Inc./Miami, FL
Corporate University Review      Securities Data/New York
Jon Peddie Associates            management/Tiburon, CA
MFG Publishing                      Penton/Cleveland, OH
  two magazines,
  conferences and seminars
Multimedia Week NL                  Penton/Cleveland, OH
New Hope Communications             Penton/Cleveland, OH
  three business and two
  consumer magazines
Nutracon Conference                 Penton/Cleveland, OH
Stardust.com                        Penton/Cleveland, OH
Commerce Publishing                 Pfingsten/Cleveland, OH
  three magazines, trade shows
  & custom publishing operations
Information Resources               Phillips Bus./Potomac, MD
IDD Enterprises                     Platinum Equity/L.A., CA
DigiBid.com                         Primedia/New York
Equisearch.com                      Primedia/New York
Waste Age & trade show              Primedia/New York
August Communications               PW Group/Regina, SK
  ten business magazines
Current Legal Resources             QL Systems/Kingston, ON
Modern Woodworking                  Randall/Tuscaloosa, AL
Pumps & Systems                     Randall/Tuscaloosa, AL
Interbev Exhibition                 Reed Exhibition/New York
TowerGroup (85%)                    Reuters USA/New York
VentureOne Corp.                    Reuters USA/New York
Weekly Reader                       Ripplewood Holdings/N.Y.
  World Alamanac, Amer. Guidance
  Services and references
Waters Info. Services               Risk Publications/London
  Waters Magazine &
  nine newsletters
two business magazines              Rogers Media/Toronto, ON
Quality Education Data              Scholastic/New York
CHMM, Inc.                          Southam/Toronto, ON
  two waste/hazmat magazines
Confectioner                        Stagnito/Northbrook, IL
Iconoclast (online NL)              Tchong, M./S.F., CA
Macmillan Library Reference         Thomson/Toronto, ON
Singular Publishing                 Thomson/Stamford, CT
  six medical/healthcare
  magazines, books and references
Takeover Stock Report online        Thomson/Stamford, CT
Nat'l Regulatory Services           Thomson Financial/New York
Computing Canada                    TPI/Montreal, PQ
  six other technology magazines,
  annuals and Web sites
Investment Executive, Inc.          TPI/Montreal, PQ
  two financial magazines
Meeks Heit Publishing               Tribune Educ./Chicago, IL
CMP Media                           United News & Media/London
  nearly twenty computer magazines,
  conferences & Web sites
Schein Publications                 U.S. Equity Partners/N.Y.
  two real estate magazines,
  a newsletter & an annual
ZD Education                        U.S. Equity Partners/N.Y.
Veterinary Forum                    Vet. Learning/Trenton, NJ
Agricom                             VNU/New York
Information Week (UK)               VNU/New York
  four other European
  computer magazines
Int. Media Guides                   VNU/New York
J. Whitaker & Sons                  VNU/New York
Nielsen Media                       VNU/New York
Hanley-Wood Inc.                    VS&A Comm. Partners/N.Y.
  13 building/construction
  magazines, 13 house plan
  magazines, custom publishing
MFG Publishing                      management/Beverly, MA
  two magazines,
  conferences and seminars
Multiimedia Week NL                 Phillips Publ./Potomac, MD
New Hope Communications             management/Boulder, CO
  three business and two
  consumer magazines
Nutracon Conference                 Global Bus. Res./Stam., CT
Stardust.com                        management/Campbell, CA
Commerce Publishing                 management/St. Louis, MO
  three magazines, trade shows
  & custom publishing operations
Information Resources               management/Rosslyn, VA
IDD Enterprises                     Dow Jones/New York
DigiBid.com                         management/Monroe, CT
Equisearch.com                      management/Londonderry, NH
Waste Age & trade show              EIA/Washington, D.C.
August Communications               management/Winnipeg, MB
  ten business magazines
Current Legal Resources             management/Bethpage, NY
Modern Woodworking                  Bus. News Publ./Troy, MI
Pumps & Systems                     P&S LLC/Fort Collins, CO
Interbev Exhibition                 NSDA/Wash., D.C.
TowerGroup (85%)                    management/Needham, MA
VentureOne Corp.                    management/S.F., CA
Weekly Reader                       Primedia/New York
  World Alamanac, Amer. Guidance
  Services and references
Waters Info. Services               management/Binghamton, NY
  Waters Magazine &
  nine newsletters
two business magazines              Canadian Bus Media/Tor., ON
Quality Education Data              Int. Thomson/Stamford, CT
CHMM, Inc.                          management/Markham, ON
  two waste/hazmat magazines
Confectioner                        Amer. Publ./Dallas, TX
Iconoclast (online NL)              Imagine Media/Brisbane, CA
Macmillan Library Reference         Pearson/London
Singular Publishing                 management/San Diego, CA
  six medical/healthcare
  magazines, books and references
Takeover Stock Report online        management/New York
Nat'l Regulatory Services           management/Lakeville, CT
Computing Canada                    Plesman Comm./Markham, ON
  six other technology magazines,
  annuals and Web sites
Investment Executive, Inc.          management/Toronto, ON
  two financial magazines
Meeks Heit Publishing               management/Columbus, OH
CMP Media                           management/Manhasset, NY
  nearly twenty computer magazines,
  conferences & Web sites
Schein Publications                 management/New York
  two real estate magazines,
  a newsletter & an annual
ZD Education                        Ziff-Davis/New York
Veterinary Forum                    Cortlandt Gp./Hawthorne, NY
Agricom                             management/St. Joseph, MO
Information Week (UK)               CMP/Manhasset, NY
  four other European
  computer magazines
Int. Media Guides                   S&H Media/Nashua, NH
J. Whitaker & Sons                  management/London
Nielsen Media                       shareholders
Hanley-Wood Inc.                    management/Wash., D.C.
  13 building/construction
  magazines, 13 house plan
  magazines, custom publishing
HCIA, Inc                            VS&A Comm. Partners/N.Y.
Briefings Publ. Group                Wicks Business/Norwalk, CT
   six newsletters, books,
   CDs, and videos
Dow Jones Financial Publ'g           Wicks Business/Norwalk, CT
   three financial magazines
   and one newsletter
Treasury & Risk Management           Wicks Business/Norwalk, CT
Ziff-Davis Publishing                Willis, Stein/Chicago, IL
   over 80 computer magazines
trade shows                          Winchester Gp./London
AccuSearch                           Wolters Kiuwer/Chicago, IL
Bankers Systems Inc.                 Wolters Kluwer/Chicago, IL
Bureau of Business Practices         Wolters Kluwer/Chicago, IL
   over 100 newsletters, reports
   and online products
Coresearch                           Wolters Kluwer/Chicago, IL
Data Filing Services.                Wolters Kluwer/Chicago, IL
Document Resources Inc.              Wolters Kluwer/Chicago, IL
PACS Software                        Wolters Kiuwer/Chicago, IL
State Tax Institute                  Wolters Kluwer/Chicago, IL
   thre tax newsletters and
   related online products
Summers Press                        Wolters Kluwer/Chicago, IL
Telecom Reports Int.                 Wolters Kluwer/Chicago, IL
  six telecom newsletters, a
  reporting service & a daily report
two oil/gas newsletters              WorldTrade/Concord, MA
Manhattan Coop Publications          Yale Robbins/New York
Inside Training Technology           Ziff-Davis/New York
HCIA, Inc                            management/Baltimore, MD
Briefings Publ. Group                Pearson/London
   six newsletters, books,
   CDs, and videos
Dow Jones Financial Publ'g           Dow Jones/Shrewsbury, NJ
   three financial magazines
   and one newsletter
Treasury & Risk Management           Pearson/London
Ziff-Davis Publishing                Ziff-Davis/New York over
   over 80 computer magazines
trade shows                          Baxter Publ./New York
AccuSearch                           management/Houston, TX
Bankers Systems Inc.                 Golder Hawn/Minn., MN
Bureau of Business Practices         Pearson/London
   over 100 newsletters, reports
   and online products
Coresearch                           VS&A Comm. Part./New Yor
Data Filing Services.                West Group/Eagan, MN
Document Resources Inc.              West Group/Eagan, MN
PACS Software                        management/Atlanta, GA
State Tax Institute                  STI/Atlanta, GA
   thre tax newsletters and
   related online products
Summers Press                        management/Fort Worth, TX
Telecom Reports Int.                 management/Wash., D.C.
  six telecom newsletters, a
  reporting service & a daily report
two oil/gas newsletters              RPI Inc./Tarzana, CA
Manhattan Coop Publications          management/New York
Inside Training Technology           Bill Comm./New York
(Titles in bold are magazines or
journals unless otherwise noted.)