Document:

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                                                                     Exhibit 4.1

Certificate                                                               Shares
  Number                   SEE REVERSE FOR CERTAIN RESTRICTIONS

   ---
                               BIOLYNX.COM, INC.

               INCORPORATED UNDER THE LAWS OF THE STATE OF TEXAS

                                 COMMON STOCK

          The Corporation is authorized to issue  50,000,000  shares
            of  Common  Stock,  $0.001  par  value  per  share and
            20,000,000 shares of Preferred Stock,  $1.00 par value
                                  per share.

     This Certifies that _______________________________________ is the owner of
_______ fully paid and non-assessable shares of Common Stock, par value $0.001
per share, of BioLynx.Com, Inc. (the "Corporation").

     This Certificate is transferable only on the books of the Corporation by
the holder hereof in person, or by duly authorized attorney, upon surrender of
this Certificate properly endorsed.

     IN WITNESS WHEREOF, the Corporation has caused this Certificate to be
signed by its duly authorized officers this ______ day of _______________, 1999.

           SAMPLE                                             SAMPLE
-------------------------------                   ------------------------------
          PRESIDENT                                          SECRETARY
<PAGE>

     The following abbreviations, when used in the inscription on the face of
this Certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM - as tenants in common                UNIF GIFT MIN ACT -___Custodian___
TEN ENT - as tenants by the entireties                          (Cust)   (Minor)
JT TEN  - as joint tenants with right of           under Uniform Gifts to Minors
     survivorship and not as tenants                                      Act___
     in common                                                           (State)

                  Additional abbreviations may also be used
                         though not in the above list.

     For Value Received, ___________ hereby sell, assign and transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
IDENTIFYING NUMBER OF ASSIGNEE

------------------------------

--------------------------------------------------------------------------------
PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING POSTAL ZIP CODE OF ASSIGNEE

--------------------------------------------------------------------------------

------------------------------------------------------------------------- shares
of Common Stock represented by the within certificate, and do hereby irrevocably
constitute and appoint ___________________________________ attorney to transfer
the said shares on the books of the within named Corporation with full power of
substitution in the premises.

Dated
      ---------------------

                                                    ____________________________

   NOTICE: THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS
     WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT
               ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.<PAGE>

                                                                     Exhibit 4.2

Certificate                                                               Shares
  Number               SEE REVERSE FOR CERTAIN RESTRICTIONS

   ---
                               BIOLYNX.COM, INC.

               INCORPORATED UNDER THE LAWS OF THE STATE OF TEXAS

                                PREFERRED STOCK

The Corporation is authorized to issue 50,000,000 shares of Common Stock, $0.001
 par value per share and 20,000,000 shares of Preferred Stock, $1.00 par value
                                  per share.

     This Certifies that _______________________________________ is the owner of
_______ fully paid and non-assessable shares of Preferred Stock, par value $1.00
per share, of BioLynx.Com, Inc. (the "Corporation").

     This Certificate is transferable only on the books of the Corporation by
the holder hereof in person, or by duly authorized attorney, upon surrender of
this Certificate properly endorsed.

     IN WITNESS WHEREOF, the Corporation has caused this Certificate to be
signed by its duly authorized officers this ______ day of _______________, 1999.

             SAMPLE                                        SAMPLE
---------------------------------              ---------------------------------
           PRESIDENT                                      SECRETARY

<PAGE>

     The following abbreviations, when used in the inscription on the face of
this Certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM - as tenants in common                UNIF GIFT MIN ACT -___Custodian___
TEN ENT - as tenants by the entireties                          (Cust)   (Minor)
JT TEN  - as joint tenants with right of           under Uniform Gifts to Minors
     survivorship and not as tenants                                      Act___
     in common                                                           (State)

    Additional abbreviations may also be used though not in the above list.

     For Value Received,                   hereby sell, assign and transfer unto
                         -----------------

PLEASE INSERT SOCIAL SECURITY OR OTHER
IDENTIFYING NUMBER OF ASSIGNEE

----------------------

--------------------------------------------------------------------------------
PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING POSTAL ZIP CODE OF ASSIGNEE

------------------------------------------------------------------------- shares
of Preferred Stock represented by the within certificate, and do hereby
irrevocably constitute and appoint ___________________________________ attorney
to transfer the said shares on the books of the within named Corporation with
full power of substitution in the premises.

Dated
      -----------------------

                                               _________________________________

   NOTICE: THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS
     WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT
               ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.<PAGE>

                                                                   Exhibit 10.27

                      MARKETING REPRESENTATIVE AGREEMENT

     This Agreement, entered into on the date designated below, is between
BioLynx.Com, Inc. (hereinafter referred to as BioLynx), a Texas corporation,
with its principal place of business located at 5617 Grissom Road, San Antonio,
Texas 78228 and SOS Staffing Services, Inc. (hereinafter referred to as
Representative), a Utah corporation, with its principal place of business
located at 1415 South Main Street, Salt Lake City, Utah 84115. BioLynx and
Representative are collectively referred to as "Parties".

     WHEREAS, BioLynx is the owner of and has the right to distribute certain
"hardware"; has proprietary rights to certain "software"; and agrees to supply
the "services" necessary to provide a time, attendance and data integrated
payroll system. The "hardware" and "software" are collectively referred to as
"products"; and,

     WHEREAS, Representative desires to market the products and services of
BioLynx under the terms and conditions hereof.

     NOW, THEREFORE, in consideration of the mutual covenants and promises
herein contained the parties agree as follows:

     1. Appointment - BioLynx hereby appoints Representative as an authorized
distributor of its products and services. The Representative may solicit Service
Agreements anywhere within the United States, but without any exclusive right in
any territory; provided that BioLynx agrees that, except in the state of Texas,
no staffing industry firm other than Representative shall be engaged as an
authorized distributor of its products and services during the term of this
Agreement or any extension thereof. Representative may, with the consent of
BioLynx, which consent shall not be unreasonably withheld, subcontract to other
staffing industry firms the distribution of BioLynx's products and services.

     2. Designated Customers - In consideration of Representative efforts to
market BioLynx's products and services, BioLynx agrees that, upon written
notice, the Representative will have the exclusive right to sell the products
and services to a designated customer for a period of ninety (90) days from the
date of notification.

     3. Term of Appointment - This appointment shall commence on the date of
this agreement and remain in full force and effect for a period of three (3)
years from date hereof, but is subject to the following:

         a. This appointment shall automatically renew at the expiration of the
     original term unless earlier terminated.

         b. If either party shall cease to function as a going concern, or a
     receiver is appointed or applied for, or a petition under the federal
     bankruptcy code is filed by or against it, or it makes an assignment for
     the benefit of creditors, the non-defaulting party may upon two days
     written notice terminate this agreement, but such termination shall be
     without prejudice to the rights of the parties with respect to products
     already sold and delivered.

         c. In the event of the termination of this agreement, BioLynx agrees
     that the fees payable to Representative shall continue for a period of one
     (1) year from the date of termination.

     4. Duties of Representative - Upon acceptance of this appointment,
Representative agrees as follows:

         a. To use its best efforts to obtain Service Agreements for the
     installation of 100 units within a reasonable time from the date hereof.
     The inventory of products is to be maintained at the principal place of
     business of BioLynx and all installations and services shall be performed
     by BioLynx personnel.

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<PAGE>

         b. To attend an orientation and training seminar at BioLynx's home
     office in San Antonio, Texas. All expenses of attending the seminar will be
     the responsibility of the Representative.

         c. To be responsible for billing and collecting the Service Fee from
     its customers. The minimum Service Fee for each unit shall be the greater
     of $125.00 per week or $5.00 per employee utilizing the unit per week (the
     "Minimum Service Fee").

         d. To promptly pay BioLynx its invoice for services. Until such time
     that the Representative has obtained service contracts for the placement of
     100 units, Representative will be billed an amount equal to seventy percent
     (70%) of the Minimum Service Fee for the units actually placed based on the
     terms of the Service Agreements for the units. Thereafter, if
     Representative has obtained service contracts for the placement of 100
     units, Representative will be billed an amount equal to sixty percent (60%)
     of the Minimum Service Fee for the units placed based on the terms of the
     Service Agreements for the units. If Representative places units at a price
     above the Minimum Service Fee, Representative shall be entitled to the
     entire amount of such excess.

     5. Duties of BioLynx - In consideration of Representative's undertakings,
BioLynx agrees as follows:

         a. To coordinate completion of all installations.

         b. To provide marketing materials (limited to 20 brochures per unit,
     with additional materials available on an "at cost" basis).

         c. To employ, at its sole cost and expense, qualified personnel to
     provide the required services and products under the Service Agreement.

         d. To provide customer support services at the levels specified in the
     Service Agreement, the form of which is attached hereto as Exhibit "A" and
     incorporated herein by this reference.

         e. To undertake research and development and upgrade products as may
     become necessary.

         f. To provide Representative with five (5) "demo" units. Additional
     "demo" units may be obtained at a cost of $1,000.00 per unit.

     6. Pricing of Services - In marketing the products and services,
Representative agrees that the minimum fees charged for the products and
services must be approved by BioLynx, in writing, prior to the execution of a
Service Agreement with any customers. BioLynx agrees that the Service Agreements
obtained by Representative may provide, at Representative's discretion, that the
Service Fees may be tied to the customer's use of Representative's staffing
services and could increase if the customer ceased the use of Representative's
staffing services.

     7. Representations and Warranties - BioLynx represents and warrants to
Representative that all software used in or in connection with the products and
services which are the subject of this Agreement shall be an original work of
authorship of BioLynx, or shall be fully available for use in such software by
BioLynx through appropriate license or purchase of rights.

BioLynx represents and warrants to Representative that no technology use in or
in connection with the services or products will violate any copyright, trade
secret, trade dress, trademark or patent of any third party.

     8. Indemnification - BioLynx shall indemnify and hold Representative
harmless from and against all costs, expenses, including reasonable attorney's
fees, claims, proceedings, causes of action, damages, and liabilities arising
from or related to any breach of the representations and warranties made by
BioLynx in paragraph 7 of this Agreement.

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     9. Confidentiality - Contemporaneously with the execution of this
Agreement, the parties have executed a Confidentiality Agreement that is
attached hereto and incorporated herein for all purposes.

     10. Waiver - the failure of either party to enforce at any time any of the
provisions hereof shall not be construed to be a waiver of such provisions or of
the right of such party thereafter to enforce any such provisions.

     11. Assignment - This appointment is personal, and the rights hereunder are
not assignable or the obligations imposed delegable without the prior written
consent of BioLynx, which shall not be unreasonably withheld.

     12. Modification - No renewal or termination of this agreement, or
modification or waiver of any of the provisions herein contained, or any future
representations, promises, or condition in connection with the subject matter
hereof shall be binding unless made in writing. A mere acknowledgment or
acceptance of any order inconsistent with the terms of this agreement, or the
making of deliveries pursuant thereto, shall not be deemed an acceptance or
approval of the inconsistent provisions.

     13. Construction - This instrument contains the entire agreement between
the parties. All prior and collateral representations, promises and conditions
are expressly merged herein. Any representations, promises or conditions not
incorporated herein shall not be binding upon either party.

     14. Mandatory Arbitration - The parties agree that any dispute or claim
concerning this agreement will be settled by arbitration. The arbitration
proceedings shall be conducted under the Commercial Arbitration Rules of the
American Arbitration Association in effect at the time a demand for arbitration
under the rules is made. The decision of the arbitrators, including
determination of amount of damages suffered shall be exclusive, final and
binding on both parties, their heirs, successors, administrators and assigns.

     15. Governing Law - This Agreement shall be governed by the laws of the
State of Texas and both parties agree that exclusive venue shall be in Bexar
County, Texas.

     IN WITNESS WHEREOF, the parties have executed this agreement on the 5th day
of January, 2000.

BIOLYNX.COM, INC.                             SOS STAFFING SERVICES, INC.

By: /s/ John D. Walker II                     By: /s/ Joann W. Wagner
    ----------------------------                  -----------------------------

Name: John D. Walker II                       Name: Joann W. Wagner
      --------------------------                    ---------------------------

Title: President                              Title: Chief Executive Officer
       -------------------------                     --------------------------

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