UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13D

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

                                (AMENDMENT NO. 1)

                                    YP Corp.
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                                (Name of Issuer)

                    Common Stock, par value $0.001 per share
--------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    987824109
         --------------------------------------------------------------
                                 (CUSIP Number)

                        Grand Slam Asset Management, LLC
                                One Bridge Plaza
                           Fort Lee, New Jersey 07024
                                 (201) 346-4335
                               Attn: Erik Volfing

--------------------------------------------------------------------------------
           (Name, Address and Telephone Number of Person Authorized to
                      Receive Notices and Communications)

                                December 21, 2005
     -----------------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule  because of Rule  13d-1(e),  13d-1(f) or 13d-1(g),  check the following
box. |_|

Note:  Schedules  filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7 for other parties
to whom copies are to be sent.

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent   amendment   containing   information  which  would  alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).


                                                                SEC 1746 (12-91)



CUSIP NO. 987824109                          AMENDMENT NO. 1 TO SCHEDULE 13D
--------------------------------------------------------------------------------
1      NAMES OF REPORTING PERSONS
       I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

       Grand Slam Asset Management, LLC            IRS # 22-3779105

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2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                (a) |X|
                                                                        (b)
--------------------------------------------------------------------------------
3      SEC USE ONLY

--------------------------------------------------------------------------------
4      SOURCE OF FUNDS*

       AF
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5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS RE-
       QUIRED PURSUANT TO ITEM 2(d) OR 2(e)    |_|

--------------------------------------------------------------------------------
6      CITIZENSHIP OR PLACE OF ORGANIZATION

       Delaware, USA
--------------------------------------------------------------------------------
                     7      SOLE VOTING POWER
                 
  NUMBER OF                 -0-
   SHARES           ------------------------------------------------------------
 BENEFICIALLY        8      SHARED VOTING POWER
  OWNED BY                      
    EACH                    3,745,880
  REPORTING         ------------------------------------------------------------
   PERSON            9      SOLE DISPOSITIVE POWER
    WITH          
                            -0-
                    ------------------------------------------------------------
                     10     SHARED DISPOSITIVE POWER

                            3,745,880
--------------------------------------------------------------------------------
11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       3,745,880
--------------------------------------------------------------------------------
12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES 
       CERTAIN SHARES*                                                      |_|


--------------------------------------------------------------------------------
13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

       7.66%
--------------------------------------------------------------------------------
14     TYPE OF REPORTING PERSON

       IA
--------------------------------------------------------------------------------

                                     Page 2


CUSIP NO. 987824109                          AMENDMENT NO. 1 TO SCHEDULE 13D
--------------------------------------------------------------------------------
1      NAMES OF REPORTING PERSONS
       I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

       Grand Slam Capital Master Fund, Ltd.        IRS # 20-0239056

--------------------------------------------------------------------------------
2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                (a) |X|
                                                                        (b)
--------------------------------------------------------------------------------
3      SEC USE ONLY

--------------------------------------------------------------------------------
4      SOURCE OF FUNDS*

       WC
--------------------------------------------------------------------------------
5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS RE-
       QUIRED PURSUANT TO ITEM 2(d) OR 2(e)    |_|

--------------------------------------------------------------------------------
6      CITIZENSHIP OR PLACE OF ORGANIZATION

       Cayman Islands
--------------------------------------------------------------------------------
                     7      SOLE VOTING POWER
                 
  NUMBER OF                 -0-
   SHARES           ------------------------------------------------------------
 BENEFICIALLY        8      SHARED VOTING POWER
  OWNED BY                      
    EACH                    3,745,880
  REPORTING         ------------------------------------------------------------
   PERSON            9      SOLE DISPOSITIVE POWER
    WITH          
                            -0-
                    ------------------------------------------------------------
                     10     SHARED DISPOSITIVE POWER

                            3,745,880
--------------------------------------------------------------------------------
11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       3,745,880
--------------------------------------------------------------------------------
12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES 
       CERTAIN SHARES*                                                      |X|


--------------------------------------------------------------------------------
13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

       7.66%
--------------------------------------------------------------------------------
14     TYPE OF REPORTING PERSON

       OO
--------------------------------------------------------------------------------

                                     Page 3


This  first  amendment  (the  "First  Amendment")  amends  and  supplements  the
Statement  on  Schedule  13D,  dated  September  12,  2005  (the   "Statement"),
previously  filed with the  Securities  and Exchange  Commission  (the "SEC") by
Grand Slam Capital Master Fund, Ltd., a Cayman Islands exempted company ("Master
Fund"),  and Grand Slam Asset  Management,  LLC,  a Delaware  limited  liability
company  (the "Asset  Management",  together  with Master Fund,  the  "Reporting
Parties"),  with respect to their beneficial  ownership of the common stock (the
"Common Stock"),  par value $0.001 per share, of YP Corp., a Nevada  corporation
(the "Issuer").


          ITEM 1.    SECURITY AND ISSUER

This First  Amendment  relates to the Common Stock of the Issuer,  which has its
principal offices at 4840 East Jasmine Street, Suite 105, Mesa, Arizona.

          ITEM 2.    IDENTITY AND BACKGROUND

          (a)  This First  Amendment is being filed by Master Fund.  Master Fund
was  formed  for the  purpose  of  acquiring  and  managing  assets.  This First
Amendment is also being filed by Asset Management,  for and on behalf of itself,
which serves as the investment advisor of Master Fund. As such, Asset Management
may  be  deemed  to  control,  directly  or  indirectly,   Master  Fund  and  to
beneficially  own the  shares of  Common  Stock  being  reported  on this  First
Amendment by Master Fund.

          (b)  The address of the principal  offices of Asset Management and the
mailing address of Master Fund is One Bridge Plaza,  Fort Lee, New Jersey 07024.
The  address  of the  principal  offices  of Master  Fund is c/o Bank of Bermuda
(Cayman) Limited,  36C Bermuda House,  British American Center, Dr. Roy's Drive,
PO Box 513GT, George Town, Grand Cayman, Cayman Islands, B.W.I.

          (c)  Attached as Exhibit A is the name of the  executive  officers and
managers  of  Asset  Management  and  their  business  addresses  and  principal
occupations.  Attached  as  Exhibit B are the names of the  directors  of Master
Fund,  their business  addresses and principal  occupations.  Master Fund has no
executive officers.

          (d)  During the last five years,  neither of the Reporting Parties nor
any  person  listed  on  Exhibits  A or  B  has  been  convicted  in a  criminal
proceeding.

          (e) During the last five years,  neither of the Reporting  Parties nor
any person listed on Exhibits A or B has been a party to a civil proceeding of a
judicial or  administrative  body of competent  jurisdiction  and as a result of
such proceeding was or is subject to a judgment, decree or final order enjoining
future violations of, or prohibiting or mandating activities subject to, federal
or state securities laws or finding any violation with respect to such laws.

                                     Page 4


          (f)  The nationality of the executive officers and managers of Asset
Management are set forth on Exhibit A. The nationality of the directors of
Master Fund are set forth on Exhibit B.

          ITEM 3.    SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

The funds for the  purchase of the shares of Common Stock set forth on Exhibit C
hereto (the  "Shares")  have come from the working  capital of Master Fund.  The
aggregate  amount of funds used in making the purchases of the Shares since date
of the filing of the Statement is $287,857.

          ITEM 4.    PURPOSE OF TRANSACTION

          The Reporting  Parties have acquired the Shares,  as described in this
First Amendment,  in order to obtain a substantial equity position in the Issuer
based on the Reporting  Parties'  belief that the Common Stock at current market
prices is  undervalued  and  represent  an  attractive  investment  opportunity.
Depending  upon  overall  market  conditions,   other  investment  opportunities
available to the Reporting  Parties,  and the  availability  of shares of Common
Stock at prices that would make the purchase of additional shares desirable, the
Reporting Parties may endeavor to increase their position in the Issuer through,
among other things, the purchase of shares of Common Stock on the open market or
in private  transactions  or  otherwise,  on such terms and at such times as the
Reporting  Parties may deem advisable.  Asset Management  anticipates that, from
time to time,  it may  communicate  with the Issuer  regarding  its business and
strategic  opportunities and identify to the Issuer strategic  opportunities and
alternatives to be considered by the Issuer.  Asset Management may also propose,
propose to arrange, or identify to the Issuer sources of capital.

          Other than as set forth herein,  neither of the Reporting Parties, nor
any of the  individuals  set forth on Exhibits A or B has any plans or proposals
that relate to or would result in any of the results specified in paragraphs (a)
through (j) of Item 4 of this First Amendment.

          ITEM 5.    INTEREST IN SECURITIES OF THE ISSUER

          (a) The Reporting  Parties  beneficially own an aggregate of 3,745,880
Shares representing  approximately 7.66% of the issued and outstanding shares of
Common Stock of the Issuer. The percentage ownership of the Reporting Parties in
the Issuer's capital stock is based on 48,874,194 issued and outstanding  shares
of the Common Stock as reported by the Issuer in its Annual  Report on Form 10-K
for the year ended September 30, 2005, filed with the SEC. The managers of Asset
Management  do not  beneficially  own any shares of Common  Stock.  Since  Asset
Management may be deemed to control, directly or indirectly,  Master Fund, Asset
Management  may be deemed to have the power to direct the vote or disposition of
the  Shares,  and  accordingly,  may be  deemed,  for  purposes  of  determining
beneficial  ownership  pursuant  to  Rule  13d-3  under  the  Exchange  Act,  to
beneficially own the Shares held by Master Fund.

          (b)  Master Fund directly owns the Shares and has the power to vote or
direct the vote and to dispose or direct the  disposition  of the Shares.  Asset
Management may be deemed to 

                                     Page 5


control, directly or indirectly,  Master Fund, Asset Management may be deemed to
have  shared  power to vote or  direct  the  vote  and  dispose  or  direct  the
disposition  of the  Shares  and may be  deemed,  for  purposes  of  determining
beneficial  ownership  pursuant  to  Rule  13d-3  under  the  Exchange  Act,  to
beneficially own the shares of Common Stock held by Master Fund.

          (c)  The dates and amount of each  acquisition of the Shares is listed
on Exhibit C hereto. Except as set forth in Exhibit C hereto, there have been no
transactions  in  shares of Common  Stock  since the date of the  filing of this
Statement by the Reporting  Parties or any person or entity listed on Exhibits A
or B hereto.

          (d)  No person is known to have the right to  receive  or the power to
direct the  receipt of  dividends  from,  or the  proceeds  from the sale of the
Shares owned by Master Fund except Asset Management.

          (e)  Not applicable.

          ITEM 6.    CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS 
                     WITH RESPECT TO SECURITIES OF THE ISSUER

Asset Management provides investment management services to Master Fund pursuant
to that certain  Amended and Restated  Investment  Management  Agreement,  dated
September  1, 2003,  by and among Asset  Management,  Master Fund and Grand Slam
Capital Offshore Fund, Ltd.

                                     Page 6


          ITEM 7.    MATERIAL TO BE FILED AS EXHIBITS 

          The following materials are filed as Exhibits to the Statement:


          EXHIBIT A:        Information with respect to the executive officers 
                            and managers of Grand Slam Asset Management, LLC.

          EXHIBIT B:        Information with respect to the directors of 
                            Grand Slam Capital Master Fund, Ltd.

          EXHIBIT C:        As described in Item 5.

          EXHIBIT D:        Joint Filing Agreement.


                                     Page 7


                                    SIGNATURE



         After reasonable  inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this First Amendment is true, complete
and correct.



Dated:  December 22, 2005                Grand Slam Capital Master Fund, Ltd.




                                         By: /s/ Erik Volfing
                                             ---------------------------
                                         Name:   Erik Volfing
                                         Title:  Authorized Signatory


Dated:  December 22, 2005                Grand Slam Asset Management, LLC




                                          By: /s/ Erik Volfing
                                              ---------------------------
                                          Name:   Erik Volfing
                                          Title:  Member


                                     Page 8