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                                                                    EXHIBIT 10.1

                        AMENDMENT TO EMPLOYMENT AGREEMENT

         AMENDMENT, dated as of October 5, 2001, by and between Key3Media Group,
Inc. ("K3M"), and Fredric D. Rosen ("Executive").

         WHEREAS, Executive and Ziff-Davis Inc. ("ZD") entered into that certain
employment agreement dated as of March 1, 2000, as amended (the "Agreement");

         WHEREAS, the obligations of ZD under the Agreement were assigned to and
assumed by K3M; and

         WHEREAS, the parties hereto desire to amend the Agreement in the manner
described herein.

         NOW, THEREFORE, in consideration of the mutual covenants set forth
herein, the parties hereby agree as follows:

         1.       Capitalized terms herein shall have the meanings ascribed to
                  said terms in the Agreement, unless specifically stated to the
                  contrary herein:

         2.       Paragraph 4(b)(i) of the Agreement is hereby deleted in its
                  entirety and replaced by the following provision:

                           "(i) With respect to the term of employment
                           commencing after December 31, 2000, the Executive
                           will receive an annual performance bonus based upon
                           the growth in the EBITDA of the Events Business. For
                           these purposes, "EBITDA" for any year means the
                           consolidated reported earnings of K3M for that year,
                           as adjusted to (v) add back interest, taxes,
                           depreciation and amortization, all as determined by
                           the independent auditors of K3M applying generally
                           accepted accounting principles, (w) exclude unusual
                           non-recurring items, such as gains or losses on the
                           sale of a major business unit, (x) exclude charges
                           related to this performance bonus and any
                           substantially similar performance bonus granted to
                           the president, chief operating officer, chief
                           financial officer, chief technology officer or
                           general counsel of K3M, or any other earnings-related
                           bonuses exceeding $150,000 on an annualized basis,
                           (y) exclude any charges to earnings attributable to
                           payments to affiliates which are in excess of fair
                           market value of goods sold or services rendered, and
                           (z) exclude the effect of non-cash stock based
                           compensation (calculated in a manner consistent with
                           the manner of calculation used by K3M in its
                           financial reporting). EBITDA for 2000 shall be
                           adjusted by the Compensation Committee of the Board
                           to reflect a normalized situation, taking into
                           account special costs and expenses which may be
                           incurred in that year."

         3.       Except as otherwise set forth in this Amendment, the Agreement
                  is hereby ratified and confirmed and is in full force and
                  effect.

         The parties hereto hereby enter into this Amendment to Employment
         Agreement as of the date first stated hereinabove.

         Key3Media Group, Inc.

         By: ________________________
         Title: _______________________


         ______________________________
               Fredric D. Rosen