Document:

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                                                                EXHIBIT 4.1

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                            TERREMARK WORLDWIDE, INC.
                             2000 STOCK OPTION PLAN

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         1. PURPOSE. The purpose of this Plan is to advance the interests of
TERREMARK WOLRDWIDE, INC., a Delaware corporation (the "Company"), and its
Subsidiaries by providing an additional incentive to attract and retain
qualified and competent persons who provide services to the Company and its
Subsidiaries, and upon whose efforts and judgment the success of the Company and
its Subsidiaries is largely dependent, through the encouragement of stock
ownership in the Company by such persons.

         2. DEFINITIONS. As used herein, the following terms shall have the
meaning indicated:

                  (a) "Board" shall mean the Board of Directors of the Company.

                  (b) "Code" shall mean the Internal Revenue Code of 1986, as
                  amended from time to time.

                  (c) "Committee" shall mean the committee appointed by the
         Board pursuant to Section 13(a) hereof, or, if such committee is not
         appointed, the Board.

                  (d) "Common Stock" shall mean the Company's Common Stock, par
         value $0.001 per share.

                  (e) "Company" shall mean Terremark Worldwide, Inc., a Delaware
         corporation.

                  (f) "Director" shall mean a member of the Board.

                  (g) "Effective Date" shall mean June 23, 2000.

                  (h) "Fair Market Value" of a Share on any date of reference
         shall mean the "Closing Price" (as defined below) of the Common Stock
         on the business day immediately preceding the date of reference, unless
         the Committee or the Board in its sole discretion shall determine
         otherwise in a fair and uniform manner. For the purpose of determining
         Fair Market Value, the "Closing Price" of the Common Stock on any
         business day shall be (i) if the common stock is listed or admitted for
         trading on any United States national securities exchange, or if actual
         transactions are otherwise reported on a consolidated transaction
         reporting system, the last reported sale price of common stock on such
         exchange or reporting system, as reported in any newspaper of general
         circulation; (ii) if common stock is quoted on the National Association
         of Securities Dealers Automated Quotations System ("NASDAQ"), or any
         similar system of automated dissemination of quotations of securities
         prices in common use, the mean between the closing high bid and low
         asked quotations for such day of common stock on such system; or (iii)
         if neither clause (i) nor (ii) is applicable, the mean between the high

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         bid and low asked quotations for common stock as reported by the
         National Quotation Bureau, Incorporated if at least two securities
         dealers have inserted both bid and asked quotations for common stock on
         at least 5 of the 10 preceding days.

                  (i) "Incentive Stock Option" shall mean an incentive stock
         option as defined in Section 422 of the Internal Revenue Code.

                  (j) "Non-Qualified Stock Option" shall mean an Option that is
         not an Incentive Stock Option.

                  (k) "Officer" shall mean the Company's Chairman of the Board,
         President, Chief Executive Officer, principal financial officer,
         principal accounting officer, any vice-president of the Company in
         charge of a principal business unit, division or function (such as
         sales, administration or finance), any other officer who performs a
         policy-making function, or any other person who performs similar
         policy-making functions for the Company. Officers of Subsidiaries shall
         be deemed Officers of the Company if they perform such policy-making
         functions for the Company. As used in this paragraph, the phrase
         "policy-making function" does not include policy-making functions that
         are not significant. If pursuant to Item 401(b) of Regulation S-K (17
         C.F.R. ss. 229.401(b)) the Company identifies a person as an "executive
         officer," the person so identified shall be deemed an "Officer" even
         though such person may not otherwise be an "Officer" pursuant to the
         foregoing provisions of this paragraph.

                  (l) "Option" (when capitalized) shall mean any option granted
         under this Plan.

                  (m) "Option Agreement" means the agreement between the Company
         and the Optionee for the grant of an option.

                  (n) "Optionee" shall mean a person to whom a stock option is
         granted under this Plan or any person who succeeds to the rights of
         such person under this Plan by reason of the death of such person.

                  (o) "Outside Director" shall mean a member of the Board who
         qualifies as an "outside director" under Section 162(m) of the Internal
         Revenue Code and the regulations thereunder and as a "Non-Employee
         Director" under Rule 16b-3 promulgated under the Securities Exchange
         Act.

                  (p) "Plan" shall mean this 2000 Stock Option Plan for the
         Company.

                  (q) "Securities Exchange Act" shall mean the Securities
         Exchange Act of 1934, as amended from time to time.

                  (r) "Share" shall mean a share of Common Stock.

                  (s) "Subsidiary" shall mean any corporation (other than the
         Company) in any unbroken chain of corporations beginning with the
         Company if, at the time of the granting of the Option, each of the

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         corporations other than the last corporation in the unbroken chain owns
         stock possessing 50 percent or more of the total combined voting power
         of all classes of stock in one of the other corporations in such chain.

        3. SHARES AVAILABLE FOR OPTION GRANTS. The Committee or the Board may
grant to Optionees from time to time Options to purchase an aggregate of up to
Five Million (5,000,000) Shares from the Company's authorized and unissued
Shares. If any Option granted under the Plan shall terminate, expire, or be
canceled or surrendered as to any Shares, new Options may thereafter be granted
covering such Shares.

        4. INCENTIVE AND NON-QUALIFIED OPTIONS.

                  (a) An Option granted hereunder shall be either an Incentive
Stock Option or a Non-Qualified Stock Option as determined by the Committee or
the Board at the time of grant of the Option and shall clearly state whether it
is an Incentive Stock Option or a Non-Qualified Stock Option. All Incentive
Stock Options shall be granted within 10 years from the effective date of this
Plan. Incentive Stock Options may not be granted to any person who is not an
employee of the Company or any Subsidiary.

                  (b) Options otherwise qualifying as Incentive Stock Options
hereunder will not be treated as Incentive Stock Options to the extent that the
aggregate fair market value (determined at the time the Option is granted) of
the Shares, with respect to which Options meeting the requirements of Section
422(b) of the Code are exercisable for the first time by any individual during
any calendar year (under all plans of the Company and its parent and subsidiary
corporations as defined in Section 424 of the Code), exceeds $100,000.

        5. CONDITIONS FOR GRANT OF OPTIONS.

                  (a) Each Option shall be evidenced by an Option Agreement that
may contain any term deemed necessary or desirable by the Committee or the
Board, provided such terms are not inconsistent with this Plan or any applicable
law. Optionees shall be (i) those persons selected by the Committee or the Board
from the class of all regular or leased employees of, or persons who provide
consulting or other services as independent contractors to, the Company or its
Subsidiaries, including Directors and Officers who are regular employees, and
(ii) Directors who are not employees of the Company or of any Subsidiaries.

                  (b) In granting Options, the Committee or the Board shall take
into consideration the contribution the person has made to the success of the
Company or its Subsidiaries and such other factors as the Committee or the Board
shall determine. The Committee or the Board shall also have the authority to
consult with and receive recommendations from officers and other personnel of
the Company and its Subsidiaries with regard to these matters. The Committee or
the Board may from time to time in granting Options under the Plan prescribe
such other terms and conditions concerning such Options as it deems appropriate,
including, without limitation, (i) prescribing the date or dates on which the
Option becomes exercisable, (ii) providing that the Option rights accrue or
become exercisable in installments over a period of years, or upon the

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attainment of stated goals or both, or (iii) relating an Option to the continued
employment of the Optionee for a specified period of time, provided that such
terms and conditions are not more favorable to an Optionee than those expressly
permitted herein.

                  (c) The Options granted to employees under this Plan shall be
in addition to regular salaries, pension, life insurance or other benefits
related to their employment with the Company or its Subsidiaries. Neither the
Plan nor any Option granted under the Plan shall confer upon any person any
right to employment or continuance of employment by the Company or its
Subsidiaries.

                  (d) The Committee or the Board shall have the discretion to
grant Options that are exercisable for unvested shares of Common Stock. Should
the Optionee cease to be employed with or perform services for the Company (or a
Subsidiary) while holding such unvested shares, the Company shall have the right
to repurchase, at the exercise price paid per share, any or all of those
unvested shares. The terms upon which such repurchase right shall be exercisable
(including the period and procedure for exercise and the appropriate vesting
schedule for the purchased shares) shall be established by the Committee or the
Board and set forth in the document evidencing such repurchase right.

                  (e) Notwithstanding any other provision of this Plan, an
Incentive Stock Option shall not be granted to any person owning directly or
indirectly (through attribution under Section 424(d) of the Code) at the date of
grant, stock possessing more than 10% of the total combined voting power of all
classes of stock of the Company (or of its parent or subsidiary corporation (as
defined in Section 424 of the Code) at the date of grant) unless the option
price of such Option is at least 110% of the Fair Market Value of the Shares
subject to such Option on the date the Option is granted, and such Option by its
terms is not exercisable after the expiration of five years from the date such
Option is granted.

                  (f) Notwithstanding any other provision of this Plan, and in
addition to any other requirements of this Plan, the aggregate number of Options
granted to any one Optionee during any calendar year under the Plan may not
exceed Two Million (2,000,000) subject to adjustment as provided in Section 10
hereof.

         6. OPTION PRICE. The option price per Share of any Option shall be any
price determined by the Committee or the Board but shall not be less than the
par value per Share; provided, however, that in no event shall the option price
per Share of any Incentive Stock Option be less than the Fair Market Value of
the Shares underlying such Option on the date such Option is granted.

         7. EXERCISE OF OPTIONS. An Option shall be deemed exercised when (i)
the Company has received written notice of such exercise in accordance with the
terms of the Option, (ii) full payment of the aggregate option price of the
Shares as to which the Option is exercised has been made, and (iii) arrangements
that are satisfactory to the Committee or the Board in its sole discretion have
been made for the Optionee's payment to the Company of the amount that is
necessary for the Company or Subsidiary employing the Optionee to withhold in
accordance with applicable Federal or state tax withholding requirements. The
consideration to be paid for the Shares to be issued upon exercise of an Option
as well as the method of payment of the exercise price and of any withholding
and employment taxes applicable thereto, shall be determined by the Committee or
the Board and may in the discretion of the Committee or the Board consist of:
(1) cash, (2) certified or official bank check, (3) money order, (4) Shares that

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have been held by the Optionee for at least six (6) months (or such other Shares
as the Company determines will not cause the Company to recognize for financial
accounting purposes a charge for compensation expense), (5) the withholding of
Shares issuable upon exercise of the Option, (6) pursuant to a "cashless
exercise" procedure, by delivery of a properly executed exercise notice together
with such other documentation, and subject to such guidelines, as the Board or
the Committee shall require to effect an exercise of the Option and delivery to
the Company by a licensed broker acceptable to the Company of proceeds from the
sale of Shares or a margin loan sufficient to pay the exercise price and any
applicable income or employment taxes, or (7) in such other consideration as the
Committee or the Board deems appropriate, or by a combination of the above. In
the case of an Incentive Stock Option, the permissible methods of payment shall
be specified at the time the Option is granted. The Committee or the Board in
its sole discretion may accept a personal check in full or partial payment of
any Shares. If the exercise price is paid, and/or the Optionee's tax withholding
obligation is satisfied, in whole or in part with Shares, or through the
withholding of Shares issuable upon exercise of the Option, the value of the
Shares surrendered or withheld shall be their Fair Market Value on the date the
Option is exercised. The Committee or the Board in its sole discretion may, on
an individual basis or pursuant to a general program established in connection
with this Plan, cause the Company to lend money to an Optionee, guarantee a loan
to an Optionee, or otherwise assist an Optionee to obtain the cash necessary to
exercise all or a portion of an Option granted hereunder or to pay any tax
liability of the Optionee attributable to such exercise. If the exercise price
is paid in whole or part with Optionee's promissory note, such note shall (i)
provide for full recourse to the maker, (ii) be collateralized by the pledge of
the Shares that the Optionee purchases upon exercise of the Option, (iii) bear
interest at the prime rate of the Company's principal lender, and (iv) contain
such other terms as the Committee or the Board in its sole discretion shall
reasonably require. No Optionee shall be deemed to be a holder of any Shares
subject to an Option unless and until a stock certificate or certificates for
those Shares are issued to that person(s) under the terms of this Plan. No
adjustment shall be made for dividends (ordinary or extraordinary, whether in
cash, securities or other property) or distributions or other rights for which
the record date is prior to the date the stock certificate is issued, except as
expressly provided in Section 10 hereof.

         8. EXERCISABILITY OF OPTIONS. Any Option shall become exercisable in
such amounts, at such intervals and upon such terms as the Committee or the
Board shall provide in the Option Agreement for that Option, except as otherwise
provided in this Section 8:

                  (a) The expiration date of an Option shall be determined by
the Committee or the Board at the time of grant, but in no event shall an Option
be exercisable after the expiration of 10 years from the date of grant of the
Option.

                  (b) To the extent provided in any Option Agreement, or as
otherwise determined by the Incumbent Board as defined in Section 8(b)(ii)
below, each outstanding Option shall become immediately fully exercisable in the
event of a "Change in Control" or in the event that the Committee or the Board
exercises its discretion to provide a cancellation notice with respect to the
Option pursuant to Section 9(b) hereof. For this purpose, the term "Change in
Control" shall mean:

                           (i) Approval by the shareholders of the Company of a
reorganization, merger, consolidation or other form of corporate transaction or
series of transactions, in each case, with respect to which persons who were the
shareholders of the Company immediately prior to such reorganization, merger or
consolidation or other transaction do not, immediately thereafter, own more than
50% of the combined voting power entitled to vote generally in the election of
directors of the reorganized, merged or consolidated company's then outstanding

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voting securities, in substantially the same proportions as their ownership
immediately prior to such reorganization, merger, consolidation or other
transaction, or a liquidation or dissolution of the Company or the sale of all
or substantially all of the assets of the Company (unless such reorganization,
merger, consolidation or other corporate transaction, liquidation, dissolution
or sale is subsequently abandoned); or

                           (ii) Individuals who, as of the date on which the
Option is granted, constitute the Board (the "Incumbent Board") cease for any
reason to constitute at least a majority of the Board, provided that any person
becoming a director subsequent to the date on which the Option was granted whose
election, or nomination for election by the Company's shareholders, was approved
by a vote of at least a majority of the directors then comprising the Incumbent
Board (other than an election or nomination of an individual whose initial
assumption of office is in connection with an actual or threatened election
contest relating to the election of the Directors of the Company) shall be, for
purposes of this Agreement, considered as though such person were a member of
the Incumbent Board; or

                           (iii) The acquisition (other than from the Company)
by any person, entity or "group", within the meaning of Section 13(d)(3) or
14(d)(2) of the Securities Exchange Act, of beneficial ownership (within the
meaning of Rule 13-d promulgated under the Securities Exchange Act) of 30% or
more of either the then outstanding shares of the Company's Common Stock or the
combined voting power of the Company's then outstanding voting securities
entitled to vote generally in the election of directors (hereinafter referred to
as the ownership of a "Controlling Interest") excluding, for this purpose, any
acquisitions by (1) the Company or its Subsidiaries, (2) any person, entity or
"group" that as of the date on which the Option is granted owns beneficial
ownership (within the meaning of Rule 13d-3 promulgated under the Securities
Exchange Act) of a Controlling Interest or (3) any employee benefit plan of the
Company or its Subsidiaries.

                  (c) The Committee or the Board may in its sole discretion,
accelerate the date on which any Option may be exercised and may accelerate the
vesting of any Shares subject to any Option or previously acquired by the
exercise of any Option.

         9. TERMINATION OF OPTION PERIOD.

                  (a) Unless otherwise provided in any Option Agreement, the
unexercised portion of any Option shall automatically and without notice
terminate and become null and void at the time of the earliest to occur of the
following:

                           (i) three months after the date on which the
Optionee's employment is terminated other than by reason of (A) Cause, which,
solely for purposes of this Plan, shall mean the termination of the Optionee's
employment by reason of the Optionee's willful misconduct or gross negligence,
(B) a mental or physical disability (within the meaning of Internal Revenue Code
Section 22(e)) of the Optionee as determined by a medical doctor satisfactory to
the Committee, or (C) death of the Optionee;

                           (ii) immediately upon the termination of the
Optionee's employment for Cause;

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                           (iii) twelve months after the date on which the
Optionee's employment is terminated by reason of a mental or physical disability
(within the meaning of Section 22(e) of the Code) as determined by a medical
doctor satisfactory to the Committee or the Board;

                           (iv) (A) twelve months after the date of termination
of the Optionee's employment by reason of death of the Optionee, or, if later,
(B) three months after the date on which the Optionee shall die if such death
shall occur during the one year period specified in Subsection 9(a)(iii) hereof.
All references herein to the termination of the Optionee's employment shall, in
the case of an Optionee who is not an employee of the Company or a Subsidiary,
refer to the termination of the Optionee's service with the Company.

                  (b) To the extent not previously exercised, (i) each Option
shall terminate immediately in the event of (1) the liquidation or dissolution
of the Company, or (2) any reorganization, merger, consolidation or other form
of corporate transaction in which the Company does not survive, unless the
successor corporation, or a parent or subsidiary of such successor corporation,
assumes the Option or substitutes an equivalent option or right pursuant to
Section 10(c) hereof, and (ii) the Committee or the Board in its sole discretion
may by written notice ("cancellation notice") cancel, effective upon the
consummation of any corporate transaction described in Subsection 8(b)(i) hereof
in which the Company does survive, any Option that remains unexercised on such
date. The Committee or the Board shall give written notice of any proposed
transaction referred to in this Section 9(b) a reasonable period of time prior
to the closing date for such transaction (which notice may be given either
before or after approval of such transaction), in order that Optionees may have
a reasonable period of time prior to the closing date of such transaction within
which to exercise any Options that then are exercisable (including any Options
that may become exercisable upon the closing date of such transaction). An
Optionee may condition his exercise of any Option upon the consummation of a
transaction referred to in this Section 9(b).

         10. ADJUSTMENT OF SHARES.

                  (a) If at any time while the Plan is in effect or unexercised
Options are outstanding, there shall be any increase or decrease in the number
of issued and outstanding Shares through the declaration of a stock dividend or
through any recapitalization resulting in a stock split-up, combination or
exchange of Shares, then and in that event:

                           (i) appropriate adjustment shall be made in the
maximum number of Shares available for grant under the Plan, or available for
grant to any person under the Plan, so that the same percentage of the Company's
issued and outstanding Shares shall continue to be subject to being so optioned;
and

                           (ii) the Board or the Committee may, in its
discretion, make any adjustments it deems appropriate in the number of Shares
and the exercise price per Share thereof then subject to any outstanding Option,
so that the same percentage of the Company's issued and outstanding Shares shall
remain subject to purchase at the same aggregate exercise price.

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                  (b) Unless otherwise provided in any Option Agreement, the
Committee may change the terms of Options outstanding under this Plan, with
respect to the option price or the number of Shares subject to the Options, or
both, when, in the Committee's sole discretion, such adjustments become
appropriate so as to preserve benefits under the Plan.

                  (c) In the event of a proposed sale of all or substantially
all of the Company's assets or any reorganization, merger, consolidation or
other form of corporate transaction in which the Company does not survive, where
the securities of the successor corporation, or its parent company, are issued
to the Company's shareholders, then the successor corporation or a parent of the
successor corporation may, with the consent of the Committee or the Board,
assume each outstanding Option or substitute an equivalent option or right. If
the successor corporation, or its parent, does not cause such an assumption or
substitution to occur, or the Committee or the Board does not consent to such an
assumption or substitution, then each Option shall terminate pursuant to Section
9(b) hereof upon the consummation of sale, merger, consolidation or other
corporate transaction.

                  (d) Except as otherwise expressly provided herein, the
issuance by the Company of shares of its capital stock of any class, or
securities convertible into shares of capital stock of any class, either in
connection with a direct sale or upon the exercise of rights or warrants to
subscribe therefor, or upon conversion of shares or obligations of the Company
convertible into such shares or other securities, shall not affect, and no
adjustment by reason thereof shall be made to, the number of or exercise price
for Shares then subject to outstanding Options granted under the Plan.

                  (e) Without limiting the generality of the foregoing, the
existence of outstanding Options granted under the Plan shall not affect in any
manner the right or power of the Company to make, authorize or consummate (i)
any or all adjustments, recapitalizations, reorganizations or other changes in
the Company's capital structure or its business; (ii) any merger or
consolidation of the Company; (iii) any issue by the Company of debt securities,
or preferred or preference stock that would rank above the Shares subject to
outstanding Options; (iv) the dissolution or liquidation of the Company; (v) any
sale, transfer or assignment of all or any part of the assets or business of the
Company; or (vi) any other corporate act or proceeding, whether of a similar
character or otherwise.

         11. TRANSFERABILITY OF OPTIONS AND SHARES.

                  (a) No Incentive Stock Option, and unless the prior written
consent of the Committee or the Board is obtained (which consent may be withheld
for any reason) and the transaction does not violate the requirements of Rule
16b-3 promulgated under the Securities Exchange Act no Non-Qualified Stock
Option, shall be subject to alienation, assignment, pledge, charge or other
transfer other than by the Optionee by will or the laws of descent and
distribution, and any attempt to make any such prohibited transfer shall be
void. Each Option shall be exercisable during the Optionee's lifetime only by
the Optionee, or in the case of a Non-Qualified Stock Option that has been
assigned or transferred with the prior written consent of the Committee or the
Board, only by the permitted assignee.

                  (b) No Shares acquired by an Officer or Director pursuant to
the exercise of an Option may be sold, assigned, pledged or otherwise
transferred prior to the expiration of the six-month period following the date
on which the Option was granted, unless the transaction does not violate the
requirements of Rule 16b-3 promulgated under the Securities Exchange Act.

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         12. ISSUANCE OF SHARES.

                  (a) Notwithstanding any other provision of this Plan, the
Company shall not be obligated to issue any Shares unless it is advised by
counsel of its selection that it may do so without violation of the applicable
Federal and State laws pertaining to the issuance of securities, and may require
any stock so issued to bear a legend, may give its transfer agent instructions,
and may take such other steps, as in its judgment are reasonably required to
prevent any such violation.

                  (b) As a condition to any sale or issuance of Shares upon
exercise of any Option, the Committee or the Board may require such agreements
or undertakings as the Committee or the Board may deem necessary or advisable to
facilitate compliance with any applicable law or regulation including, but not
limited to, the following:

                           (i) a representation and warranty by the Optionee to
the Company, at the time any Option is exercised, that he is acquiring the
Shares to be issued to him for investment and not with a view to, or for sale in
connection with, the distribution of any such Shares; and

                           (ii) a representation, warranty and/or agreement to
be bound by any legends endorsed upon the certificate(s) for the Shares that
are, in the opinion of the Committee or the Board, necessary or appropriate to
facilitate compliance with the provisions of any securities laws deemed by the
Committee or the Board to be applicable to the issuance and transfer of those
Shares.

         13. ADMINISTRATION OF THE PLAN.

                  (a) The Plan shall be administered by the Board or, at the
discretion of the Board, by a committee appointed by the Board (the "Committee")
which shall be composed of two or more Directors. The membership of the
Committee shall be constituted so as to comply at all times with the then
applicable requirements for Outside Directors of Rule 16b-3 promulgated under
the Securities Exchange Act and Section 162(m) of the Internal Revenue Code. The
Committee shall serve at the pleasure of the Board and shall have the powers
designated herein and such other powers as the Board may from time to time
confer upon it.

                  (b) The Committee or the Board may grant Options pursuant to
this Plan to any persons to whom Options may be granted under Section 5(a)
hereof.

                  (c) The Committee or the Board, from time to time, may adopt
rules and regulations for carrying out the purposes of the Plan. The
determinations of the Committee or the Board, and its interpretation and
construction of any provision of the Plan or any Option Agreement, shall be
final and conclusive.

                  (d) Any and all decisions or determinations of the Committee
shall be made either (i) by a majority vote of the members of the Committee at a
meeting or (ii) without a meeting by the unanimous written approval of the
members of the Committee.

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         14. WITHHOLDING OR DEDUCTION FOR TAXES. If at any time specified herein
for the making of any issuance or delivery of any Option or Common Stock to any
Optionee, any law or regulation of any governmental authority having
jurisdiction in the premises shall require the Company to withhold, or to make
any deduction for, any taxes or to take any other action in connection with the
issuance or delivery then to be made, the issuance or delivery shall be deferred
until the withholding or deduction shall have been provided for by the Optionee
or beneficiary, or other appropriate action shall have been taken.

         15. INTERPRETATION.

                  (a) As it is the intent of the Company that the Plan shall
comply in all respects with Rule 16b-3 promulgated under the Securities Exchange
Act ("Rule 16b-3"), any ambiguities or inconsistencies in construction of the
Plan shall be interpreted to give effect to such intention, and if any provision
of the Plan is found not to be in compliance with Rule 16b-3, such provision
shall be deemed null and void to the extent required to permit the Plan to
comply with Rule 16b-3. The Committee or the Board may from time to time adopt
rules and regulations under, and amend, the Plan in furtherance of the intent of
the foregoing.

                  (b) The Plan and any Option Agreements entered into pursuant
to the Plan shall be administered and interpreted so that all Incentive Stock
Options granted under the Plan will qualify as Incentive Stock Options under
Section 422 of the Code. If any provision of the Plan or any Option Agreement
relating to an Incentive Stock Option should be held invalid for the granting of
Incentive Stock Options or illegal for any reason, that determination shall not
affect the remaining provisions hereof, but instead the Plan and the Option
Agreement shall be construed and enforced as if such provision had never been
included in the Plan or the Option Agreement.

                  (c) This Plan shall be governed by the laws of the State of
Florida.

                  (d) Headings contained in this Plan are for convenience only
and shall in no manner be construed as part of this Plan.

                  (e) Any reference to the masculine, feminine, or neuter gender
shall be a reference to such other gender as is appropriate.

         16. AMENDMENT AND DISCONTINUATION OF THE PLAN. The Committee or the
Board may from time to time amend, suspend or terminate the Plan or any Option;
provided, however, that, any amendment to the Plan shall be subject to the
approval of the Company's shareholders if such shareholder approval is required
by any federal or state law or regulation (including, without limitation, Rule
16b-3 or to comply with Section 162(m) of the Internal Revenue Code) or the
rules of any Stock exchange or automated quotation system on which the Common
Stock may then be listed or granted. Except to the extent provided in Sections 9
and 10 hereof, no amendment, suspension or termination of the Plan or any Option
issued hereunder shall substantially impair the rights or benefits of any
Optionee pursuant to any Option previously granted without the consent of the
Optionee.

         17. EFFECTIVE DATE AND TERMINATION DATE. The effective date of the Plan
is June 23, 2000, and the Plan shall terminate on the 10th anniversary of the
Effective Date. The Plan shall be submitted to the shareholders of the Company
for their approval and adoption and Options hereunder may be granted prior to
such approval and adoption but contingent upon such approval and adoption.

                                       10<PAGE>
                                                                    EXHIBIT 4.2

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                            TERREMARK WORLDWIDE, INC.
                        2000 DIRECTORS STOCK OPTION PLAN

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         1. PURPOSE. The purpose of this Plan is to advance the interests of
TERREMARK WORLDWIDE, INC., a Delaware corporation (the "Company"), and its
Subsidiaries by providing an additional incentive to attract and retain
qualified and competent persons upon whose efforts and judgment the success of
the Company and its Subsidiaries is largely dependent, through the encouragement
of stock ownership in the Company by such persons.

         2. DEFINITIONS. As used herein, the following terms shall have the
meaning indicated:

                  (a) "Board" shall mean the Board of Directors of the Company.

                  (b) "Code" shall mean the Internal Revenue Code of 1986, as
amended from time to time.

                  (c) "Committee" shall mean the committee appointed by the
Board pursuant to Section 13(a) hereof, or, if such committee is not appointed,
the Board.

                  (d) "Common Stock" shall mean the Company's Common Stock, par
value $0.001 per share.

                  (e) "Company" shall mean TERREMARK WORLDWIDE, INC., a Delaware
corporation.

                  (f) "Director" shall mean a member of the Board.

                  (g) "Effective Date" shall mean September 21, 2000.

                  (h) "Fair Market Value" of a Share on any date of reference
shall mean the "Closing Price" (as defined below) of the Common Stock on the
business day immediately preceding the date of reference, unless the Committee
in its sole discretion shall determine otherwise in a fair and uniform manner.
For the purpose of determining Fair Market Value, the "Closing Price" of the
Common Stock on any business day shall be (i) if the common stock is listed or
admitted for trading on any United States national securities exchange, or if
actual transactions are otherwise reported on a consolidated transaction
reporting system, the last reported sale price of common stock on such exchange
or reporting system, as reported in any newspaper of general circulation; (ii)

                                       1
<PAGE>

if common stock is quoted on the National Association of Securities Dealers
Automated Quotations System ("NASDAQ"), or any similar system of automated
dissemination of quotations of securities prices in common use, the mean between
the closing high bid and low asked quotations for such day of common stock on
such system; or (iii) if neither clause (i) nor (ii) is applicable, the mean
between the high bid and low asked quotations for common stock as reported by
the National Quotation Bureau, Incorporated if at least two securities dealers
have inserted both bid and asked quotations for common stock on at least 5 of
the 10 preceding days.

                  (i) "Internal Revenue Code" shall mean the Internal Revenue
Code of 1986, as amended from time to time.

                  (j) "Option" (when capitalized) shall mean any option granted
under this Plan.

                  (k) "Option Agreement" means the agreement between the Company
and the Optionee for the grant of an option.

                  (l) "Optionee" shall mean a person to whom a stock option is
granted under this Plan or any person who succeeds to the rights of such person
under this Plan by reason of the death of such person.

                  (m) "Outside Director" shall mean a member of the Board who
qualifies as an "outside director" under Section 162(m) of the Internal Revenue
Code and the regulations thereunder and as a "Non-Employee Director" under Rule
16b-3 promulgated under the Securities Exchange Act.

                  (n) "Plan" shall mean this 2000 Directors Stock Option Plan
for the Company.

                  (o) "Securities Exchange Act" shall mean the Securities
Exchange Act of 1934, as amended.

                  (p) "Share" shall mean a share of Common Stock.

                  (q) "Subsidiary" shall mean any corporation (other than the
Company) in any unbroken chain of corporations beginning with the Company if, at
the time of the granting of the Option, each of the corporations other than the
last corporation in the unbroken chain owns stock possessing 50 percent or more
of the total combined voting power of all classes of stock in one of the other
corporations in such chain.

         3. SHARES AVAILABLE FOR OPTION GRANTS. The Committee or the Board may
grant to Optionees from time to time Options to purchase an aggregate of up to
One Million Five Hundred Thousand (1,500,000) Shares from the Company's
authorized and unissued Shares. If any Option granted under the Plan shall
terminate, expire, or be canceled or surrendered as to any Shares, new Options
may thereafter be granted covering such Shares.

         4. OPTIONS GRANTS.

                  (a) AUTOMATIC GRANTS. On the Effective Date of this Plan, each
individual who is then a Director, and on the date of first appointment to the
Board each individual who becomes a Director thereafter, shall receive an Option
under this Plan to purchase One Hundred Thousand (100,000) shares of Common

                                       2
<PAGE>

Stock (the "Automatic Grant"). The Automatic Grants shall be subject to the
availability and adjustment of Common Stock issuable under the Plan pursuant to
Sections 3 and 9 hereof, and shall not be subject to the discretion of any
person or persons.

                  (b) VESTING OF AUTOMATIC GRANTS. Unless otherwise determined
by the Committee or in any Option Agreement, each Option granted pursuant to
this Section 4 shall become exercisable with respect to the following number of
shares of Common Stock on the following dates: (i) 33,334 shares on the date on
grant, (ii) 33,333 on the first anniversary of the date of grant, and (iii)
33,333 shares on the second anniversary of the date of grant.

         5. OPTION PRICE. The option price per Share of any Option shall be any
price determined by the Committee but shall not be less than the par value per
Share.

         6. EXERCISE OF OPTIONS. An Option shall be deemed exercised when (i)
the Company has received written notice of such exercise in accordance with the
terms of the Option, and (ii) full payment of the aggregate option price of the
Shares as to which the Option is exercised has been made. The consideration to
be paid for the Shares to be issued upon exercise of an Option, as well as the
method of payment of the exercise price, shall be determined by the Committee or
the Board and may, in the discretion of the Committee or the Board, consist of:
(1) cash, (2) certified or official bank check, (3) money order, (4) Shares that
have been held by the Optionee for at least six (6) months (or such other Shares
as the Company determines will not cause the Company to recognize for a
financial accounting purposes a change for compensation expense), (5) the
withholding of Shares issuable upon exercise of the Option, (6) pursuant to a
"cashless exercise" procedure, by delivery of a properly executed exercise
notice together with such other documentation, and subject to such guidelines,
as the Board or the Committee shall require to effect an exercise of the Option
and delivery to the Company by a licensed broker acceptable to the Company of
proceeds from the sale of Shares or a margin loan sufficient to pay the exercise
price and any applicable income or employment taxes, or (7) in such other
consideration as the Committee or the Board deems appropriate, or by a
combination of the above. The Committee or the Board in its sole discretion may
accept a personal check in full or partial payment of any Shares. If the
exercise price is paid in whole or in part with Shares, or through the
withholding of Shares issuable upon exercise of the Option, the value of the
Shares surrendered or withheld shall be their Fair Market Value on the date the
Option is exercised. The Company in its sole discretion may, on an individual
basis or pursuant to a general program established in connection with this Plan,
lend money to an Optionee, guarantee a loan to an Optionee, or otherwise assist
an Optionee to obtain the cash necessary to exercise all or a portion of an
Option granted hereunder or to pay any tax liability of the Optionee
attributable to such exercise. If the exercise price is paid in whole or part
with Optionee's promissory note, such note shall (i) provide for full recourse
to the maker, (ii) be collateralized by the pledge of the Shares that the
Optionee purchases upon exercise of such Option, (iii) bear interest at the
prime rate of the Company's principal lender, and (iv) contain such other terms
as the Board in its sole discretion shall reasonably require. No Optionee shall
be deemed to be a holder of any Shares subject to an Option unless and until a
stock certificate or certificates for such Shares are issued to such person(s)
under the terms of this Plan. No adjustment shall be made for dividends
(ordinary or extraordinary, whether in cash, securities or other property) or
distributions or other rights for which the record date is prior to the date
such stock certificate is issued, except as expressly provided in Section 10
hereof.

                                       3
<PAGE>

         7. EXERCISABILITY OF OPTIONS. Any Option shall become exercisable in
such amounts, at such intervals and upon such terms as the Committee or the
Board shall provide in such Option, except as otherwise provided in this Section
7.

                  (a) The expiration date of an Option shall be determined by
the Committee at the time of grant, but in no event shall an Option be
exercisable after the expiration of 10 years from the date of grant of the
Option.

                  (b) To the extent provided in any Option Agreement, or as
otherwise determined by the Incumbent Board as defined in Section 7(b)(ii)
below, each outstanding Option shall become immediately fully exercisable in the
event of a "Change in Control" or in the event that the Committee or the Board
exercises its discretion to provide a cancellation notice with respect to the
Option pursuant to Section 8(b) hereof. For this purpose, the term "Change in
Control" shall mean:

                           (i) Approval by the shareholders of the Company of a
reorganization, merger, consolidation or other form of corporate transaction or
series of transactions (other than an initial public offering, private placement
or other offering of the Company), in each case, with respect to which persons
who were the shareholders of the Company immediately prior to such
reorganization, merger or consolidation or other transaction do not, immediately
thereafter, own more than 50% of the combined voting power entitled to vote
generally in the election of directors of the reorganized, merged or
consolidated company's then outstanding voting securities, in substantially the
same proportions as their ownership immediately prior to such reorganization,
merger, consolidation or other transaction, or a liquidation or dissolution of
the Company or the sale of all or substantially all of the assets of the Company
(unless such reorganization, merger, consolidation or other corporate
transaction, liquidation, dissolution or sale is subsequently abandoned);

                           (ii) Individuals who, as of the date on which the
Option is granted, constitute the Board (the "Incumbent Board") cease for any
reason to constitute at least a majority of the Board, provided that any person
becoming a director subsequent to the date on which the Option was granted whose
election, or nomination for election by the Company's shareholders, was approved
by a vote of at least a majority of the directors then comprising the Incumbent
Board (other than an election or nomination of an individual whose initial
assumption of office is in connection with an actual or threatened election
contest relating to the election of the Directors of the Company) shall be, for
purposes of this Agreement, considered as though such person were a member of
the Incumbent Board; or

                           (iii) The acquisition (other than from the Company)
by any person, entity or "group", within the meaning of Section 13(d)(3) or
14(d)(2) of the Securities Exchange Act, of 30% or more of either the then
outstanding shares of the Company's Common Stock or the combined voting power of
the Company's then outstanding voting securities entitled to vote generally in
the election of directors (hereinafter referred to as the ownership of a
"Controlling Interest") excluding, for this purpose, any acquisitions by (1) the
Company or its Subsidiaries, (2) any person, entity or "group" that as of the
date on which the Option is granted owns beneficial ownership (within the
meaning of Rule 13d-3 promulgated under the Securities Exchange Act) of a
Controlling Interest, or (3) any employee benefit plan of the Company or its
Subsidiaries.

                                       4
<PAGE>

                  (c) The Committee or the Board may in its sole discretion
accelerate the date on which any Option may be exercised and may accelerate the
vesting of any Shares subject to any Option or previously acquired by the
exercise of any Option.

         8.       TERMINATION OF OPTION PERIOD.

                  (a) Unless otherwise provided in any Option agreement, the
unexercised portion of any Option shall automatically and without notice
terminate and become null and void at the time of the earliest to occur of the
following:

                           (i) twelve (12) months after the date on which the
Optionee's service as a director of the Company is terminated for any reason
other than by the Company for Cause (as defined in subsection 8(a)(ii) hereof);

                           (ii) immediately upon the termination of the
Optionee's service as a director of the Company for Cause which, solely for
purposes of this Plan, shall mean the termination of the Optionee's service by
reason of the Optionee's willful misconduct or gross negligence;

                           (iii) immediately in the event that the Optionee
shall file any lawsuit or arbitration claim against the Company or any
Subsidiary, or any of their respective officers, directors or shareholders,
other than a claim to enforce a right of indemnification, whether by contract or
under applicable law; or

                           (iv) ten (10) years from the date of grant of the
Option.

                  (b) To the extent not previously exercised, (i) each Option
shall terminate immediately in the event of (1) the liquidation or dissolution
of the Company, or (2) any reorganization, merger, consolidation or other form
of corporate transaction in which the Company does not survive, unless the
successor corporation, or a parent or subsidiary of such successor corporation,
assumes the Option or substitutes an equivalent option or right pursuant to
Section 9(c) hereof, and (ii) the Committee or the Board in its sole discretion
may by written notice ("cancellation notice") cancel, effective upon the
consummation of any corporate transaction described in Subsection 7(b)(i) hereof
in which the Company does survive, any Option that remains unvested or
unexercised on such date. The Committee or the Board shall give written notice
of any proposed transaction referred to in this Section 8(b) a reasonable period
of time prior to the closing date for such transaction (which notice may be
given either before or after approval of such transaction), in order that
Optionees may have a reasonable period of time prior to the closing date of such
transaction within which to exercise any Options that then are exercisable
(including any Options that may become exercisable upon the closing date of such
transaction). An Optionee may condition his exercise of any Option upon the
consummation of a transaction referred to in this Section 8(b).

         9. ADJUSTMENT OF SHARES.

                  (a) If at any time while the Plan is in effect or unexercised
Options are outstanding, there shall be any increase or decrease in the number
of issued and outstanding Shares through the declaration of a stock dividend or

                                       5
<PAGE>

through any recapitalization resulting in a stock split-up, combination or
exchange of Shares, then and in such event:

                           (i) appropriate adjustment shall be made in the
maximum number of Shares available for grant under the Plan, so that the same
percentage of the Company's issued and outstanding Shares shall continue to be
subject to being so optioned; and

                           (ii) the Board or the Committee may, in its
discretion, make any adjustments it deems appropriate in the number of Shares
and the exercise price per Share thereof then subject to any outstanding Option,
so that the same percentage of the Company's issued and outstanding Shares shall
remain subject to purchase at the same aggregate exercise price.

                  (b) Unless otherwise provided in any Option, the Committee may
change the terms of Options outstanding under this Plan, with respect to the
option price or the number of Shares subject to the Options, or both, when, in
the Committee's sole discretion, such adjustments become appropriate so as to
preserve but not increase benefits under the Plan.

                  (c) In the event of a proposed sale of all or substantially
all of the Company's assets or any reorganization, merger, consolidation or
other form of corporate transaction in which the Company does not survive, where
the securities of the successor corporation, or its parent company, are issued
to the Company's shareholders, then the successor corporation or a parent of the
successor corporation may, with the consent of the Committee or the Board,
assume each outstanding Option or substitute an equivalent option or right. If
the successor corporation, or its parent, does not cause such an assumption or
substitution to occur, or the Committee or the Board does not consent to such an
assumption or substitution, then each Option shall terminate pursuant to Section
8(b) hereof upon the consummation of sale, merger, consolidation or other
corporate transaction.

                  (d) Except as otherwise expressly provided herein, the
issuance by the Company of shares of its capital stock of any class, or
securities convertible into shares of capital stock of any class, either in
connection with direct sale or upon the exercise of rights or warrants to
subscribe therefor, or upon conversion of shares or obligations of the Company
convertible into such shares or other securities, shall not affect, and no
adjustment by reason thereof shall be made to, the number of or exercise price
for Shares then subject to outstanding Options granted under the Plan.

                  (e) Without limiting the generality of the foregoing, the
existence of outstanding Options granted under the Plan shall not affect in any
manner the right or power of the Company to make, authorize or consummate (i)
any or all adjustments, recapitalizations, reorganizations or other changes in
the Company's capital structure or its business; (ii) any merger or
consolidation of the Company; (iii) any issue by the Company of debt securities,
or preferred or preference stock that would rank above the Shares subject to
outstanding Options; (iv) the dissolution or liquidation of the Company; (v) any
sale, transfer or assignment of all or any part of the assets or business of the
Company; or (vi) any other corporate act or proceeding, whether of a similar
character or otherwise.

         10. TRANSFERABILITY OF OPTIONS. Unless the prior written consent of the
Committee or the Board is obtained (which consent may be withheld for any
reason) and the transaction does not violate the requirements of Rule 16b-3

                                       6
<PAGE>

promulgated under the Securities Exchange Act, no Option shall be subject to
alienation, assignment, pledge, charge or other transfer other than by the
Optionee by will or the laws of descent and distribution, and any attempt to
make any such prohibited transfer shall be void. Each Option shall be
exercisable during the Optionee's lifetime only by the Optionee, or in the case
of an Option that has been assigned or transferred with the prior written
consent of the Committee or the Board, only by the permitted assignee.

         11. ISSUANCE OF SHARES.

                  (a) Notwithstanding any other provision of this Plan, the
Company shall not be obligated to issue any Shares unless it is advised by
counsel of its selection that it may do so without violation of the applicable
Federal and State laws pertaining to the issuance of securities, and may require
any stock so issued to bear a legend, may give its transfer agent instructions,
and may take such other steps, as in its judgment are reasonably required to
prevent any such violation.

                  (b) As a condition to any sale or issuance of Shares upon
exercise of any Option, the Committee may require such agreements or
undertakings as the Committee may deem necessary or advisable to facilitate
compliance with any applicable law or regulation including, but not limited to,
the following:

                           (i) a representation and warranty by the Optionee to
the Company, at the time any Option is exercised, that he is acquiring the
Shares to be issued to him for investment and not with a view to, or for sale in
connection with, the distribution of any such Shares; and

                           (ii) a representation, warranty and/or agreement to
be bound by any legends endorsed upon the certificate(s) for such Shares that
are, in the opinion of the Committee, necessary or appropriate to facilitate
compliance with the provisions of any securities laws deemed by the Committee to
be applicable to the issuance and transfer of such Shares.

         12. ADMINISTRATION OF THE PLAN.

                  (a) The Plan shall be administered by the Board or, at the
discretion of the Board, by a committee appointed by the Board (the "Committee")
which shall be composed of two or more Directors. The membership of the
Committee shall be constituted so as to comply at all times with the then
applicable requirements for Outside Directors of Rule 16b-3 promulgated under
the Securities Exchange Act and Section 162(m) of the Internal Revenue Code. The
Committee shall serve at the pleasure of the Board and shall have the powers
designated herein and such other powers as the Board may from time to time
confer upon it.

                  (b) The Board may grant Options pursuant to this Plan to any
persons to whom Options may be granted under Section 5(a) hereof.

                  (c) The Committee or the Board, from time to time, may adopt
rules and regulations for carrying out the purposes of the Plan. The
determinations by the Board or the Committee and its interpretation and
construction of any provision of the Plan or any Option shall be final and
conclusive.

                                       7
<PAGE>

                  (d) Any and all decisions or determinations of the Board or
the Committee shall be made either (i) by a majority vote of the members of the
Board or the Committee at a meeting or (ii) without a meeting by the unanimous
written approval of the members of the Board or the Committee.

         13. WITHHOLDING OR DEDUCTION FOR TAXES. If at any time specified herein
for the making of any issuance or delivery of any Option or Common Stock to any
Optionee, any law or regulation of any governmental authority having
jurisdiction in the premises shall require the Company to withhold, or to make
any deduction for, any taxes or take any other action in connection with the
issuance or delivery then to be made, such issuance or delivery shall be
deferred until such withholding or deduction shall have been provided for by the
Optionee or beneficiary, or other appropriate action shall have been taken.

         14. INTERPRETATION.

                  (a) As it is the intent of the Company that the Plan comply in
all respects with Rule 16b-3 promulgated under the Securities Exchange Act
("Rule 16b-3"), any ambiguities or inconsistencies in construction of the Plan
shall be interpreted to give effect to such intention, and if any provision of
the Plan is found not to be in compliance with Rule 16b-3, such provision shall
be deemed null and void to the extent required to permit the Plan to comply with
Rule 16b-3. The Committee or the Board may from time to time adopt rules and
regulations under, and amend, the Plan in furtherance of the intent of the
foregoing.

                  (b) This Plan shall be governed by the laws of the State of
Delaware.

                  (c) Headings contained in this Plan are for convenience only
and shall in no manner be construed as part of this Plan.

                  (d) Any reference to the masculine, feminine, or neuter gender
shall be a reference to such other gender as is appropriate.

         15. AMENDMENT AND DISCONTINUATION OF THE PLAN. The Committee or the
Board may from time to time amend, suspend or terminate the Plan or any Option;
provided, however, that, any amendment to the Plan shall be subject to the
approval of the Company's shareholders if such shareholder approval is required
by any federal or state law or regulation (including, without limitation, Rule
16b-3 or to comply with Section 162(m) of the Internal Revenue Code) or the
rules of any Stock exchange or automated quotation system on which the Common
Stock may then be listed or granted. Except to the extent provided in Sections 8
and 9 hereof, no amendment, suspension or termination of the Plan or any Option
issued hereunder shall substantially impair the rights or benefits of any
Optionee pursuant to any Option previously granted without the consent of the
Optionee.

         16. TERMINATION DATE. The Plan shall terminate on the 10th anniversary
of the Effective Date.

                                       8

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