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                                                                   EXHIBIT 10.39
                           CONVERTIBLE PROMISSORY NOTE


$250,000.00                                                     October 30, 2000

         FOR VALUE RECEIVED, the undersigned, QORUS.COM, INC., a Florida
corporation (hereinafter referred to as the "Maker"), hereby unconditionally
promises to pay to the order of Thurston Communications Corporation, a Delaware
corporation (hereinafter referred to as the "Holder"), at Holder's address at
190 South LaSalle Street, Suite 1710, Chicago, Illinois 60603, or, upon notice
from Holder, to the person so designated in said notice to Maker, the principal
sum of TWO HUNDRED FIFTY THOUSAND AND NO/100 ($250,000.00), or so much thereof
as may be advanced and outstanding hereunder, together with interest on the
outstanding principal balance from day to day remaining, payable in lawful money
of the United States of America as set forth herein.

         1. Interest. This Note shall bear interest on the unpaid principal
balance hereof until paid in full at the rate of TEN PERCENT (10%) per annum.
Interest on the indebtedness evidenced by this Note shall be computed on the
basis of a year of 365 or 366 days, as the case may be, and charged for the
actual number of days elapsed.

         2. Advances. Subject to the terms and conditions of this Note, and
provided that no Event of Default (as defined in Section 4.1) has occurred and
is continuing, Holder agrees to make, or cause to be made, a loan to the Maker
in a principal amount up to but not exceeding Two Hundred Fifty Thousand and
No/100 ($250,000.00) in one or more advances as requested by Maker upon notice
in writing delivered to Holder at least five (5) business days prior to the date
on which such advance is to be made. No requests for advances may be made after
December 31, 2000. Subject to the terms and conditions of this Note, and
provided that no Event of Default has occurred and is continuing, advances
hereunder shall be made available to the Maker by depositing the same, in
immediately available funds, in an account of the Maker designated by the Maker.

         3. Payments. All principal and interest on this Note shall be due and
payable on the earlier to occur of (i) March 31, 2001 or (ii) the date of
closing of the next equity or quasi-equity financing for the Maker, or any of
its subsidiaries. The earlier of such dates is herein referred to as the
"Payment Date." All amounts past due and outstanding on this Note from and after
the Payment Date shall accrue interest at an interest rate equal to the lesser
of fifteen percent (15%) or the maximum lawful rate until paid in full. This
Note may not be prepaid.

         4. Default

            4.1  Events of Default. Maker shall be in default hereunder upon the
         happening of any of the following events or conditions (each such event
         or condition hereinafter referred to as an "Event of Default"):

                 (a) Maker shall fail to pay when due the principal or interest
         of this Note.

                 (b) Maker shall commence a voluntary proceeding seeking
         liquidation, reorganization, or other relief with respect to itself or
         its debts under any bankruptcy, insolvency, or other similar law now or
         hereafter in effect, or seeking the appointment of a trustee, receiver,
         liquidator, custodian, or other similar official for it or a
         substantial part of its property or shall consent to any such relief or
         to the appointment of or taking possession by any such official in an
         involuntary case or other proceeding commenced against it or shall make


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         a general assignment for the benefit of creditors or shall generally
         fail to pay its debts as they become due or shall take any corporate
         action to authorize any of the foregoing.

                           (c) Any involuntary proceeding shall be commenced
         against Maker seeking liquidation, reorganization, or other relief with
         respect to it or its debts under any bankruptcy, insolvency, or other
         similar law now or hereafter in effect, or seeking the appointment of a
         trustee, receiver, liquidator, custodian, or other similar official for
         it or a substantial part of its property, and such involuntary
         proceeding shall remain undismissed and unstayed for a period of ninety
         (90) days.

                           (d) This Note shall cease to be in full force and
         effect or shall be declared null and void or the validity or
         enforceability hereof shall be contested or challenged by Maker, or
         Maker shall deny that it has any further liability or obligation under
         this Note.

         5. Remedies. Upon the occurrence of any Event of Default, Holder may,
at its option, declare the entire unpaid principal of and accrued interest on
this Note immediately due and payable without notice, demand or presentment, all
of which are hereby waived, and upon such declaration, the same shall become and
shall be immediately due and payable, and Holder shall have the right to
foreclose or otherwise enforce all liens or security interests securing payment
hereof, or any part hereof, and offset against this Note any sum or sums owed by
Holder hereof to Maker. Failure of Holder to exercise this option shall not
constitute a waiver of the right to exercise the same upon the occurrence of a
subsequent Event of Default.

         6. Costs and Expenses. If this Note is placed in the hands of an
attorney for collection, or for the recovery or protection of this indebtedness,
or if Holder incurs any costs incident to the collection of the indebtedness
evidenced hereby after the occurrence of an Event of Default or the enforcement
or protection of the security, Maker and any endorsers hereof will be liable
for, without notice or demand, all costs and expenses arising therefrom, to
include reasonable attorney's fees plus all costs of court and litigation and
the reasonable costs of any other collection efforts.

         7. Waivers. Maker and each surety, guarantor, endorser, and other party
ever liable for payment of any sums of money payable on this Note jointly and
severally waive notice, presentment, demand for payment, protest, notice of
protest and non-payment or dishonor, notice of acceleration, notice of intent to
accelerate, notice of intent to demand, diligence in collecting, grace, and all
other formalities of any kind, and consent to all extensions without notice for
any period or periods of time and partial payments, before or after maturity,
and any impairment of any collateral securing this Note, all without prejudice
to Holder. Holder shall similarly have the right to deal in any way, at any
time, with one or more of the foregoing parties without notice to any other
party, and to grant any such party any extensions of time for payment of any of
said indebtedness, or to release or substitute part or all of the collateral
securing this Note, or to grant any other indulgences or forbearances
whatsoever, without notice to any other party and without in any way affecting
the personal liability of any party hereunder.

         8. Maximum Interest Rate. If the laws of the State of Illinois or the
United States of America are now or ever revised, repealed, or judicially
interpreted, so as to render usurious any amount called for under this Note, or
contracted for, charged, taken, reserved, received, or paid, with respect to the
loan or forbearance evidenced by this Note, or if any prepayment by Maker or
other



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party, or computations of any sort, result in Maker or any other party to this
instrument having paid, been charged, or contracted for any interest in excess
of that permitted by law, then it is the express intent of Maker, Holder, and
any other party to this instrument that all excess amounts contracted for,
collected, charged, received, or taken by Holder or paid by Maker or any other
party be credited on the principal balance of this Note (or if this Note has
been paid in full, refunded to Maker or to whomever else may be so entitled),
and the provisions of this Note be deemed reformed and the amounts thereafter
collectable hereunder reduced, without the necessity of the execution of any new
document, so as to comply with the then applicable law, but so as to permit the
recovery of the fullest amount otherwise called for hereunder. It is expressly
stipulated and agreed to be the intent of Maker and Holder and other parties to
this instrument to at all times comply with the applicable usury laws of
Illinois and of the United States now or hereafter governing the interest paid
on this Note and the loan or forbearance evidenced hereby.

         9. Governing Law; Venue. This Note shall be governed by and construed
in accordance with the laws of the State of Illinois and the applicable laws of
the United States of America. Any action or proceeding under or in connection
with this Note against Maker or any other party ever liable for payment of any
sums of money payable on this Note shall be brought in any state or federal
court in Cook County, Illinois. Maker and each such other party hereby
irrevocably (i) submits to the exclusive jurisdiction of such courts, and (ii)
waives any objection it may now or hereafter have as to the venue of any such
action or proceeding brought in such court or that such court is an inconvenient
forum. Any action or proceeding by Maker or any other party liable hereunder
against Holder shall be brought only in a court located in Cook County,
Illinois.

         10. Entire Agreement. THIS NOTE EMBODIES THE FINAL, ENTIRE AGREEMENT OF
MAKER AND HOLDER WITH RESPECT TO THE INDEBTEDNESS EVIDENCED BY THIS NOTE AND
SUPERSEDES ANY AND ALL PRIOR COMMITMENTS, AGREEMENTS, REPRESENTATIONS AND
UNDERSTANDINGS, WHETHER WRITTEN OR ORAL, RELATING TO THE INDEBTEDNESS EVIDENCED
BY THIS NOTE AND MAY NOT BE CONTRADICTED OR VARIED BY EVIDENCE OF PRIOR,
CONTEMPORANEOUS OR SUBSEQUENT ORAL AGREEMENTS OR DISCUSSIONS OF MAKER AND
HOLDER. THERE ARE NO ORAL AGREEMENTS BETWEEN MAKER AND HOLDER RELATING TO THE
INDEBTEDNESS EVIDENCED BY THIS NOTE.

         11. Automatic Conversion.

             11.1  Automatic Conversion and Conversion Price.


                   The outstanding principal and interest of this Note shall
         automatically convert, without any action on the part of the Holder, on
         the closing of the offering and sale by Maker or any of its
         subsidiaries of shares of any securities (debt or equity) of Maker or
         such subsidiary (the "Conversion Securities") in which Maker receives
         gross proceeds (excluding the conversion of this Note and the similar
         Convertible Promissory Notes payable to Apex Investment Fund III, L.P.,
         Apex Strategic Partners, LLC and Thurston Communications Corporation of
         $5,000,000 or more (the "Conversion Date") into such fully paid and
         non-assessable shares of Conversion Securities (calculated to the
         nearest 1/100th of a share), having the same powers, designations,
         preferences, and relative participating, optional or other special
         rights, and the qualifications, limitations or restrictions thereof, as
         the Conversion Securities sold in such private sale, at the conversion
         price (the "Conversion Price") equal to the lowest price per share of
         Conversion Securities received by Maker in such private sale. In
         addition, Holder shall be

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         granted such additional rights and benefits as those granted to the
         other purchasers in such private sale. Maker shall furnish to Holder
         all such documentation as Holder may reasonably request to verify the
         Conversion Price and other terms of such private sale. The number of
         shares of Conversion Securities issuable upon conversion of this Note
         shall be determined as follows: divide (A) the sum of (i) the principal
         of this Note outstanding on the Conversion Date, plus (ii) all accrued
         and unpaid interest on this Note on the Conversion Date, by (B) the
         Conversion Price.

                11.2  Issuance of Shares of Conversion Securities on Conversion.


                      (a) As promptly as practicable after the Conversion Date,
         Maker shall issue, at its expense, and shall deliver to such Holder,
         (i) a certificate or certificates for the number of full shares of
         Conversion Securities issuable upon the conversion of this Note, and
         (ii) cash in lieu of scrip as provided in Section 11.4.

                      (b) Such conversion shall be deemed to have been effected
         immediately prior to the close of business on the Conversion Date, and
         at such time the rights of the Holder shall cease and the person or
         persons in whose name or names any certificate or certificates for
         shares of Conversion Securities shall be issuable upon such conversion
         shall be deemed to have become the holder or holders of record of the
         shares represented thereby.

                11.3  No Adjustments for Dividends.

                No payment or adjustment shall be made by or on behalf of Maker
         on account of any dividends on the Conversion Securities issued upon
         such conversion which were declared for payment to holders of
         Conversion Securities of record as of a date prior to the Conversion
         Date.

                11.4  Cash Payment in Lieu of Fractional Shares.

                No fractional shares of Conversion Securities shall be issued
         upon the conversion of this Note. In lieu of any fraction of a share of
         Conversion Securities to which the Holder would otherwise be entitled
         upon conversion of this Note, Maker shall pay a cash adjustment for
         such fraction in an amount equal to the same fraction of the Conversion
         Price per share of Conversion Securities at the close of business on
         the Conversion Date.

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         IN WITNESS WHEREOF, Maker has duly executed this Note as of the day and
year above first written.

                                     QORUS.COM, INC.,
                                     a Florida corporation


                                     By:  /s/ THOMAS C. RATCHFORD
                                        ----------------------------------------
                                        Thomas C. Ratchford
                                        Chief Financial Officer



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