Document:

<PAGE>

                                                                   Exhibit 10.43

                          PURCHASE AND SALE AGREEMENT

                                       by

                                      and

                                    between

                                 RoweCom, Inc.

                                  as "Seller"

                                      and

                         Sixty-Five Lafayette Road, LLC

                                   as "Buyer"

                                  Dated as of
                               November 20, 2000

<PAGE>

                                     INDEX

                                                                            Page
                                                                            ----

SECTION 1.    IDENTIFICATION OF PARTIES                                        1
SECTION 2.    DESCRIPTION OF THE PROPERTY                                      1
SECTION 3.    THE PURCHASE PRICE                                               1
SECTION 4.    DUE DILIGENCE - INSPECTION                                       2
SECTION 5.    REPRESENTATIONS AND WARRANTIES OF SELLER                         4
SECTION 6.    REPRESENTATIONS AND WARRANTIES OF PURCHASER                      5
SECTION 7.    SELLER'S DELIVERIES                                              6
SECTION 8.    CONDITIONS PRECEDENT TO CLOSING                                  7
SECTION 8A.   COVENANTS OF SELLER                                              8
SECTION 9.    SELLER'S CLOSING DOCUMENTS                                       8
SECTION 10.   PURCHASER'S CLOSING DOCUMENTS                                    8
SECTION 11.   PRORATIONS, ADJUSTMENTS AND CLOSING COSTS                        9
SECTION 12.   CLOSING                                                         11
SECTION 13.   DEFAULT                                                         12
SECTION 14.   BROKER'S COMMISSION                                             12
SECTION 15.   MISCELLANEOUS                                                   13

SIGNATURE PAGE                                                                16

                                    EXHIBITS

Exhibit A - Description of the Land                                            A
Exhibit B - Escrow Agent's Deposit Money Escrow Instructions                   B
and Investment Escrow Instructions

<PAGE>

                          PURCHASE AND SALE AGREEMENT

      1.    IDENTIFICATION OF PARTIES

      THIS PURCHASE AND SALE AGREEMENT (the "Agreement") is entered into as of
this ______ day of November, 2000, by and between RoweCom., Inc., a Delaware
corporation having a usual place of business at 15 Southwest Park, Westwood,
Massachusetts ("Seller") and Sixty-Five Lafayette Road, L.L.C., a/k/a 65
Lafayette Road, LLC, having an usual place of business at 2 Wells Avenue,
Newton, Massachusetts, and its permitted assigns (together hereinafter sometimes
referred to as the "Purchaser").

      2.    DESCRIPTION OF THE PROPERTY

      In consideration of the mutual undertakings of the parties set forth
herein, and for other good and valuable consideration, the receipt and
sufficiency of which hereby are acknowledged, Seller hereby agrees to sell and
convey to Purchaser or Purchaser's nominee and Purchaser hereby agrees to
purchase from Seller all of Seller's right, title and interest in and to the
following:

            (a) That certain real property located in Westwood, Norfolk County,
      Massachusetts, commonly known and numbered 15-17 Southwest Park,
      consisting of approximately 2.94 acres of land, and more particularly
      described in the description attached hereto as Exhibit A (the "Land")
      together with all buildings, structures and improvements located thereon
      (collectively, "Improvements"); and

            (b) All rights, title, interest, privileges, easements, and
      appurtenances to the Land including all easements, rights-of-way, and
      other appurtenances used or connected with the beneficial use or enjoyment
      of the Land including, but not limited to, access to a public way and all
      right, title and interest of Seller in and to any unpaid award for damage
      to the Land by reason of change of grade of any street, if any; (the Land,
      the Improvements and all such rights, title, interest, privileges,
      easements and appurtenances are sometimes collectively hereinafter
      referred to as the "Property").

      3.    THE PURCHASE PRICE

      The purchase price of the Property is Four Million Four Hundred Five
Thousand Thousand and 00/100 Dollars ($4,405,000.00) ("Purchase Price") and
shall be paid to Seller by Purchaser as

                                       1
<PAGE>

follows:

            (a) Upon execution of this Purchase and Sale Agreement (this
      "Agreement") by all parties, Purchaser shall deposit in escrow with
      Chicago Title Insurance Company ("Escrow Agent") an earnest money deposit
      in the amount of Two Hundred Thousand and 00/100 Dollars ($200,000.00)
      ("Deposit") such deposit shall be placed in an interest bearing account
      with a bank or other lending institution which shall be insured by the
      FDIC or other such insurer. The Escrow Agent will serve as Escrow Agent
      subject to Escrow Agent's Deposit Money Escrow Instructions and Investment
      of Escrow Instructions, copies of which are attached hereto as Exhibit B.

            (b) In the event the purchase and sale of the Property is
      consummated as contemplated hereunder, the Deposit, plus all interest
      earned thereon, and such total shall be paid to Seller and credited
      against the Purchase Price. In the event the purchase and sale of the
      Property is not consummated because of the failure of any Condition
      Precedent, hereinafter defined, or any other reason except for a default
      under this Agreement on the part of Purchaser, the Deposit, plus all
      interest accrued thereon, shall be refunded immediately to Purchaser. In
      the event the purchase and sale of the Property is not consummated because
      of a default under this Agreement on the part of Purchaser, the Deposit,
      plus all accrued interest thereon, shall be paid to and retained by Seller
      pursuant to Section 13.

            (c) The balance of the Purchase Price over and above the amounts
      paid by or credited to Purchaser pursuant to Sections 3(a) and (b) above
      shall be paid to Seller in United States' funds, by certified or bank
      cashier's check drawn on a Boston area bank or by wire transfer of
      immediately available funds at the Closing, hereinafter defined, net of
      all prorations as provided herein.

      4.    DUE DILIGENCE -INSPECTION

      Purchaser shall have until December 17, 2000, at 5:00 o'clok, p.m. to
perform its due diligence (the "Due Diligence Period"). In connection with its
due diligence Purchaser and its representatives shall also have the right, with
prior reasonable notice to Seller, to enter onto the Property at all reasonable
times, and from time to time, at Purchaser's expense, for purposes of inspecting
the Property; provided that any invasive or subsurface testing will require the
the prior written consent of the Seller, which consent shall not be unreasonably
withheld, delayed or denied. Seller shall also provide Purchaser with all books
and records pertaining to the operation of the Property in its possession.
Purchaser shall be

                                       2
<PAGE>

responsible for the restoration of the Property substantially to its condition
prior to making such tests and removing all liens on the Property arising from
Purchaser's investigations, such obligations to restore and to remove liens to
continue if Purchaser shall not acquire the Property for any reason other than
Seller's default hereunder and such obligations shall survive any termination of
this Agreement due to Purchaser's default. Purchaser and its representatives
shall not unreasonably interfere with the Seller's business operations.
Purchaser shall indemnify and hold harmless Seller against any claims, losses or
damages arising from any damage to the Property or property of others or any
injury to persons or death resulting from any such activities undertaken on
behalf of Purchaser, or any breach by Purchaser of its obligations under this
Section 4, which obligations shall survive the Closing and any termination of
this Agreement. Purchaser shall provide Seller with a certificate naming Seller
as a named insured under the Purchaser's liability insurance policy to cover
Purchaser's indemnification of Seller as described in this paragraph.

      Purchaser agrees to keep all results and findings of its due diligence
investigations confidential except to the extent that disclosure is required by
applicable law and Purchaser's mortgagee.

      If Purchaser shall, for any reason, in its sole discretion, be
dissatisfied with the results of its due diligence, Purchaser shall have the
right to terminate this Agreement by written notice to the Seller, sent no later
than the expiration of the Due Diligence Period, whereupon all deposits plus
interest earned thereon, shall immediately be returned to the Purchaser and this
Agreement shall become null and void.

      If the Purchaser has satisfactorily completed its due diligence prior to
the time for the expiration of the Due Diligence Period as set forth in the
first sentence of this Section 4, Purchaser may so notify Seller in writing and
the Due Diligence Period shall end upon such notice; and the time of such notice
shall then be considered to be the end of the Due Diligence Period for purposes
of this Agreement. Such written notice shall also specify the date for Closing
which shall be five (5) business days after the end of the Due Diligence Period,
but in no event later than December 18, 2000.

      Purchaser and Seller agree that if Purchaser is satisfied with the results
of its Due Diligence and takes title to the Property, that it shall acquire the
Property in its "AS IS" condition, WITH ALL FAULTS, IF ANY, AND WITHOUT ANY
WARRANTY EXPRESSED OR IMPLIED".

                                       3
<PAGE>

      5.    REPRESENTATIONS AND WARRANTIES OF SELLER

      Seller represents and warrants to Purchaser that the following matters are
true and correct as of the execution of this Agreement and also will be true and
correct as of the Closing.

            (a) All information provided to the Purchaser by the Seller or its
      agents, including but not limited to the operating costs for the Property
      is true and correct to the Seller's actual knowledge.

            (b) There are no written agreements with any third parties affecting
      the Property that will survive the Closing that have not been disclosed to
      Purchaser.

            (c) Intentionally Omitted

            (d) Seller has received no written notice of any condemnation,
      zoning or other land use regulation proceedings, either instituted or
      planned to be instituted, that would detrimentally affect the value of the
      Property or the use and operation of the Property as currently used.

            (e) Seller is a validly existing corporation organized under the
      laws of the State of Delaware and is not insolvent; this Agreement, and
      all the documents executed by Seller that are to be delivered to Purchaser
      at the Closing, are and will be i) duly authorized, executed, and
      delivered, ii) legal, valid, and binding obligations of Seller enforceable
      against Seller in accordance with their respective terms (except to the
      extent that such enforcement may be limited by applicable bankruptcy,
      insolvency, public policy, general principles of equity, moratorium and
      other principles relating to or limiting the right of contracting parties
      generally), iii) sufficient to convey title to the Property as required by
      this Agreement, and iv) at the time of the Closing, will not violate any
      provision of any agreement to which Seller is a party or to which it is
      subject which could adversely affect the Property or Seller's interest
      therein.

            (f) At the closing, Seller shall cause to be discharged all
      mechanics' or materialmen's liens arising from any labor or materials
      furnished to the Property prior to the Closing.

            (g) Seller has received no written notice of any pending or
      threatened legal proceedings or actions of any kind or character,
      adversely affecting the Property or Seller's interest therein.

            (h) Seller is not a "foreign person" within the meaning

                                       4
<PAGE>

      of Section 1445(f) (3) of the Internal Revenue Code of 1986, as amended
      ("Code"), and Seller will furnish to Purchaser, prior to the Closing, an
      affidavit with respect thereto.

      The representations and warranties made in this Agreement by Seller are
material, shall be deemed to have been relied upon by Purchaser, shall be
continuing and shall be deemed remade by Seller as of the Closing with the same
force and effect as if specifically made again at that time. The representations
and warranties made in this Agreement shall not merge into any instrument or
conveyance delivered at the Closing but shall survive the Closing for a period
of nine (9) months after the Closing and Purchaser's liability in the event that
any of said representations and warranties should prove to be false or
inaccurate shall be limited to $275,000.00. The effect of the representations
and warranties made in this Agreement shall not be diminished or deemed to be
waived by any due diligence, audits, inspections, tests or investigations made
by Purchaser or its agents. Except as specifically set forth above, Seller has
not made, and Purchaser has not relied upon, any other representations or
warranties in connection with the purchase of the Property.

      Notwithstanding anything contained herein to the contrary, if Purchaser
has actual knowledge prior to the expiration of the Due Diligence Period of
facts that would make any Seller representations untrue, and Purchaser does not
terminate this Agreement prior to the expiration of the Due Diligence Period,
Purchaser shall thereafter be deemed to have waived for all purposes of this
Agreement any action or claim against Seller on account of such breached
representation. Likewise, if Purchaser has actual knowledge prior to the Closing
Date of facts that would make any Seller representations untrue, and Purchaser
proceeds with the Closing, Purchaser shall thereafter be deemed to have waived
for all purposes of this Agreement any action or claim against Seller on account
of such breached representation.

      6.    REPRESENTATIONS AND WARRANTIES OF PURCHASER

      Purchaser hereby represents and warrants to Seller, that although this
Agreement will be assigned to Bruce R. Mathias, Trustee of the Lafayette
Exchange Trust (the "Trustee"), in connection with a tax deferred exchange under
sec. 1031 of the Internal Revenue Code, this Agreement has been, and all other
documents executed by Purchaser or Trustee which are to be delivered by
Purchaser or Trustee to Seller at or before the Closing will be duly authorized,
executed and delivered by Purchaser or Trustee and are, and will be, legal and
binding obligations of Purchaser or Trustee, enforceable in accordance with
their respective terns (except to the extent that such enforcement may be
limited by applicable bankruptcy, insolvency, public policy, general principles
of equity, moratorium and other principles

                                       5
<PAGE>

relating to or limiting the rights of contracting parties generally), and do
not, and will not at the time of the Closing, violate any provisions of any
agreement to which Purchaser or Trustee is a party. Seller shall cooperate with
Purchaser in connection with the tax deferred exchange, provided that Purchaser
shall reimburse and indemnify Seller for any additional costs which Seller may
incur as a result of such cooperation with Purchaser.

      7.    SELLER'S DELIVERIES

            Seller will deliver to Purchaser copies of all documents pertaining
to the Property referred to below, if such exist, no later than five (5) days
following the execution hereof by all parties to the extent that Seller has such
in its possession:

            (a) Copies of i) the most recent title insurance title insurance
      policy, ii) most recent ALTA survey, iii) any plans and specifications,
      iv) soil boring tests, geological surveys and drainage plans, v)
      information relating to the environmental conditions, vi) latest building
      inspection reports, vii) leases and contracts (including maintenance,
      security, cleaning, property management, etc.) and viii) operating
      statements for the past three (3) years.

            (b) To the extent not already included in the above subsection,
      copies of any notices, or reports that relate to the physical condition or
      operation of the Property or any proposed improvements thereto, including,
      without limitation, any such notices, reports or plans relating to
      Hazardous Substances in, on or beneath the Property or adjoining sites,
      storage tanks, sewer connections or septic systems. For the purposes of
      this Agreement, the term "Hazardous Substances" shall include, without
      limitation, any flammable items, explosives, oil, radioactive materials,
      hazardous or toxic substances, material or waste or related materials,
      including, without limitation, any substances defined as or included in
      the definition of "extremely hazardous substances", "hazardous
      substances", "hazardous material", "hazardous waste", infectious
      substances " or "toxic substances" in any current federal, state or local
      law, rule, code or regulation or any judicial or administrative
      interpretation of such laws, rules, codes or regulations, including,
      without limitation, any products and materials that are found to have
      adverse effects on the environment or the health and safety of persons.

            (c) A copy of the bill or bills issued for the most recent year for
      which bills have been issued for all real estate taxes (including assessed
      value) and a copy of any and all notices pertaining to real estate taxes
      or assessments for the last three (3) years. Seller shall promptly deliver
      to Purchaser a copy of any such bills or notices received by

                                       6
<PAGE>

      Seller after the date hereof or after the Closing.

            (d) Copies of all certificates of occupancy, licenses, permits,
      variances related to use, location and/or distance, authorizations and
      approvals and copies of any agreements with any federal, state or local
      governmental authority.

            (e) Copies of current insurance policies and any pending insurance
      claims or litigation documents.

            (f) Copies of any existing leases and any other agreements which are
      in effect with tenants.

      8.    CONDITIONS PRECEDENT TO CLOSING

      The following shall be conditions precedent to Purchaser's obligation to
consummate the purchase and sale transaction contemplated herein and except as
otherwise indicated, each such condition precedent must be satisfied, to
Purchaser's satisfaction, as of the Closing (collectively "Conditions
Precedent"). Purchaser may, at its sole discretion, waive any or all of such
conditions and close title under this Agreement without any increase in,
abatement of or credit against the Purchase Price.

            (a) Intentionally omitted.

            (b) .Good and clear record and marketable title to the Property,
      approved by Purchaser, with a title company selected by Purchaser having
      issued a commitment and being ready to issue a standard ALTA Owner's
      policy, in the amount of the purchase price, upon recording after the
      Closing, and subject only to the following matters:

            i.    Provisions of existing building and zoning laws;

            ii.   Such taxes for the then current tax period as are not due and
                  payable of the date of the Closing;

            iii.  Any liens for municipal betterments assessed after the
                  Closing; and

            iv.   Such other matters as Purchaser may approve in writing in its
                  reasonable discretion.

            v.    All matters of record existing as of the date of the title
                  insurance commitment issued to Purchaser by Chicago Title
                  Insurance Company.

            Notwithstanding the foregoing, Purchaser shall be deemed to have
      approved of the status of title existing as of the date of this Agreement
      unless Purchaser notifies Seller of its

                                       7
<PAGE>

      objection to any such matter in writing on or before the end of the Due
      Diligence Period as defined in Section 4 of this Agreement.

            (c) The Property shall be in substantially the same condition as it
      was at the time of the end of the Due Diligence Period, only reasonable
      use, wear and tear and casualty excepted subject to the provisions set
      forth in Section 12 (c) of this Agreement.

            (d) Full possession of the Property, free of all tenants and
      occupants other than the occupancy of the Seller under the Lease referred
      to in Section 8 (a), shall be delivered at the Closing.

      8A.   COVENANTS OF SELLER

      Seller hereby covenants with Purchaser as follows:

            (a) Prior to the Closing, Seller shall not enter into any lease,
      except for the Lease (sd defined in Section 15.1), without the prior
      written permission of the Purchaser.

            (b) Until the Closing, Seller shall maintain fire and extended
      coverage insurance on the Property as presently issued.

      9.    SELLER'S CLOSING DOCUMENTS

      At the Closing, Seller shall deliver or cause to be delivered to Purchaser
the following, each in form and substance reasonably acceptable to Purchaser and
Seller:

            (a) A Quitclaim Deed, executed by Seller, in recordable form,
      conveying good and clear record and marketable title to the Property to
      the Purchaser or the Permitted assignee of the Purchaser, as directed by
      the Purchaser, free and clear of all claims, liens and encumbrances except
      the matters referred to in Section 8(b).

            (b) Proof of the authority of Seller to execute deed and other
      documents, as is customary and as may be required by the Purchaser's title
      insurance company.

            (c) An affidavit certifying that Seller is not a "foreign person"
      within the meaning of Section 1445(f) (3) of the Internal Revenue Code.

            (d) The Lease (as defined in Section 15.1) duly executed by the
      Seller (with the Seller as Lessee and the

                                       8
<PAGE>

      purchaser as Lessor), together with a notice of lease, in recordable form.

            (e) A non-disturbance and attornment agreement, by and between the
      Seller as Lessee and the mortgagee providing financing to the Purchaser
      (the "Mortgagee") for its purchase of the Property, in a form which shall
      be reasonably satisfactory to Seller.

            (f) Any other documents, instruments or agreements called for
      hereunder that have not previously been delivered including, without
      limitation, documents customarily and reasonably required by the Mortgagee
      to consummate the loan or required by the the title insurance company in
      order to issue an owner's title insurance policy at standard rates
      insuring title to the Property, including without limitation, such
      affidavits and indemnity agreements as may be customary for deleting
      exceptions for survey, mechanics' and materialmen's liens and parties in
      possession.

      10.   PURCHASER'S CLOSING DOCUMENTS

      At the Closing, Purchaser shall deliver to Seller the Purchase Price in
accordance with Section 3, by wire transfer, or by bank or certified check, at
the Seller's option, and shall execute and deliver the Lease and notice of lease
in recordable form, together with any documents in recordable form which Seller
may reasonably require to show Purchaser's authority to execute the Lease.

      11.   PRORATIONS, ADJUSTMENTS AND CLOSING COSTS

      The following shall be prorated and adjusted between Seller and Purchaser
as of the day of the Closing unless final bills have been paid by the Seller
prior to the Closing, the net amount of which shall be ajusted in favor of the
party in whose favor such net apportionment arises:

            (a) Operating expenses, utility charges and water and sewer use
      charges shall be apportioned as of the Closing.

            (b) Real estate taxes for the then current tax period shall be
      apportioned as of the Closing. If the amount of such taxes is not known at
      the Closing, such taxes shall be apportioned on the basis of the taxes
      assessed for the preceding year, with a reapportionment as soon as the new
      tax rate and valuation can be ascertained; and, if the taxes which are to
      be apportioned shall thereafter be reduced by abatement, the amount of
      such abatement, less the reasonable cost of obtaining the same, shall be
      apportioned between the parties, provided that neither party shall be
      obligated to

                                       9
<PAGE>

      institute or prosecute proceedings for an abatement unless otherwise
      agreed. If such proceedings are commenced, the party commencing the same
      shall give the other party notice thereof, thereafter diligently prosecute
      such proceedings and not discontinue the same without first giving the
      other party notice of its intention to do so and a reasonable opportunity
      to be substituted in such proceedings; and the other party agrees to
      cooperate in such proceedings without being obligated to incur any expense
      in connection therewith.

            (c) If, on the day of the Closing, the Land, or any part thereof,
      shall be or shall have been affected by a betterment or other special
      assessment, which are or may become payable in installments, then for the
      purpose of this Agreement all the unpaid installments thereof, which are
      to become due and payable after the day of the Closing, shall be paid by
      Purchaser without abatement of the Purchase Price, but the installment
      currently billed, shall be subject to adjustment in the same manner as
      real estate taxes for the tax period in which the Closing occurs. If any
      assessments for public improvements shall arise subsequent to the
      execution hereof, and prior to delivery of Seller's deed, Seller will
      elect to cause the same to be paid over the longest period allowed by law,
      and will be prorated as set forth in this paragraph.

            (d) Seller shall pay its own closing costs including, but not
      limited to, fees for the Escrow Agent, documentary taxes based on the
      purchase price and affixed to the deed, and those recording charges
      customarily paid for by a seller; and Purchaser shall pay for its title
      examination, the premium for its Owner's Title Insurance Policy and those
      recording charges customarily paid for by a buyer. Any other costs that
      are customarily prorated in transactions of this nature shall be ratably
      prorated. Each party shall pay for its own counsel fees.

      For purposes of calculating prorations, Purchaser shall be deemed to have
acquired title to the Property and entitled to the income therefrom, and
responsible for the expenses thereof, for the entire day on which the Closing
occurs. All such prorations shall be made on the basis of the actual number of
days of the month which shall have elapsed as of the day of the Closing and
based upon a three hundred sixty five (365) day year.

      The applicable terms and provisions of this Section 11 shall survive the
Closing.

                                       10
<PAGE>

      12.   CLOSING

      (a) The purchase and sale contemplated herein shall close (the "Closing")
at the offices of Lakin, Solomon & Gold, 10 Laurel Avenue, Wellesley, MA 02481
at 10:00 o'clock, a.m. or at the office of the Purchaser's lenders counsel, on
that date which shall be the earlier of 1) five (5) business days after the
satisfactory conclusion of its due diligence by the Purchaser with written
notice from the Purchaser to the Seller as provided in Section 4, or ii)
December 18, 2000, unless the parties otherwise shall mutually agree upon
another time, date or place. Time is of the essence of this Agreement.

      (b) If, at the Closing, Seller shall be unable to comply with the
provisions of this Agreement, or to give title or make conveyance, or to deliver
possession of the Property, all as stipulated in this Agreement, or if at the
time of the delivery of the deed the Property does not conform with the
provisions hereof, Seller shall use commercially reasonable efforts to comply
with the provisions of this Agreement to remove any defects in title, to make
conveyance, to deliver possession as provided herein, and to make the Property
conform with the provisions hereof, as the case may be, in which event the
Closing shall be extended for a period of not more than thirty (30) days, unless
otherwise mutually agreed upon by the parties provided that Seller shall not be
required to spend more than $100,000.00 in the aggregate to satisfy any of the
foregoing.

      If at the expiration of the extended time Seller shall not have cured the
previously existing problem so that conveyance can be made in accordance with
the terms of this Agreement, then Purchaser may elect, by giving written notice
thereof to Seller on or before the extended Closing date, (i) to terminate this
Agreement or (ii) to accept the conveyance of the Property on the extended
Closing date in its then condition, and pay the Purchase Price without
deduction; provided, however, that even if Purchaser fails to give such written
notice, Purchaser shall nevertheless be deemed to have elected to terminate this
Agreement. In the event Purchaser elects to terminate this Agreement, either by
giving notice or by failing to give notice, this Agreement shall be null and
void with no further obligation on the part of either party and any money in
escrow, together with interest thereon, shall immediately be returned to the
Purchaser.

      (c) Notwithstanding the provisions of Section 12(b), Purchaser may elect
at either the original or extended Closing to accept such title as Seller can
deliver to the Property in its then condition and to pay Seller the Purchase
Price without reduction, in which event, Seller shall convey such title to
Purchaser. If any Portion of the Property shall have been taken by eminent
domain, Seller shall pay over or assign to Purchaser, at the Closing, all

                                       11
<PAGE>

awards recovered or recoverable on account of such taking, less any amounts
reasonably expended by Seller in obtaining such awards. If any portion of the
Property shall have been damaged by fire or other casualty insured against and
not fully restored to its former condition, Seller shall pay over or assign or
credit to Purchaser, at the Closing, all amounts recovered or recoverable on
account of such insurance, less any amounts reasonably expended by Seller for
any restoration.

      13.   DEFAULT

      In the event Purchaser defaults in its obligations to close the purchase
of the Property, then the deposit and the interest accrued thereon shall be paid
to and retained by Seller as liquidated damages and shall be Seller's sole
remedy at law or in equity. The parties hereto expressly agree and acknowledge
that Seller's actual damages in the event of such a default by Purchaser would
be extremely difficult or impractable to ascertain and that the amount of
liquidated damages provided herein is reasonable in light of anticipated loss
caused by such a default and the difficulties of proof of loss.

      14.   BROKER'S COMMISSION

      (a) Seller represents and warrants that the only broker involved in this
sale is CB Richard Ellis/Whittier Partners and that Seller shall pay the entire
brokerage commission or other compensation due in connection with this sale, in
accordance with its agreement with said broker. Seller agrees to indemnify and
hold Purchaser harmless from and against any losses, damages, costs and expenses
(including without limitation reasonable attorneys' fees) incurred by Purchaser
by reason of any breach or inaccuracy of the representation and warranty
contained in this Section 14(a) and/or Seller's failure to so pay such brokerage
commission or other compensation.

      (b) Purchaser represents and warrants it has had no contact with any
broker in connection with this sale except for CB Richard Ellis/Whittier
Partners. Purchaser agrees to indemnify and hold Seller harmless from and
against any losses, damages, costs and expenses (including without limitation
reasonable attorneys' fees) incurred by Seller by reason of any breach or
inaccuracy of the representation and warranty contained in this Section 14 (b).

      (c) The terms and provisions of this Section 14 shall survive the Closing.

                                       12
<PAGE>

      15.   MISCELLANEOUS

      15.1 Within ten (10) business days after the execution of this Agreement,
the parties shall aagree upon the terms and provisions of a lease (the "Lease"),
which shall be executed by the parties at or prior to the Closing, the term of
which shall commence as of the Closing.

      15.2 Each individual and entity executing this Agreement hereby represents
and warrants that he or it has the capacity set forth on the signature pages
hereof with full power and authority to bind the party on whose behalf he or it
is executing this Agreement to the terms hereof.

      15.3 This Agreement is the entire Agreement between the parties hereto
with respect to the subject matter hereof and supersedes all prior agreements
between the parties with respect to the matters contained in this Agreement. Any
waiver, amendment, modification, consent or acquiescence with respect to any
provision of this Agreement or with respect to any failure to perform in
accordance therewith shall be set forth in writing and duly executed by or on
behalf of the party to be bound thereby. No waiver by any party of any breach
hereunder shall be deemed a waiver of any other or subsequent breach.

      15.4 This Agreement may be executed in any number of counterparts, each of
which shall be deemed an original, but all of which when taken together shall
constitute one and the same instrument. The signature page of any counterpart
may be detached therefrom without impairing the legal effect of the signature(s)
thereon provided such signature page is attached to any other counterpart
identical thereto except having additional signature pages executed by other
parties to this Agreement attached thereto.

      15.5 Time is of the essence in the performance of and compliance with each
of the provisions and conditions of this Agreement. No obligations of either
party shall survive the Closing unless so specifically stated in this Agreement.

      15.6 Any communication, notice or demand of any kind whatsoever which
either party may be required or may desire to give to or serve upon the other
shall be in writing and delivered by personal service (including express or
courier service) or by registered or certified mail, postage prepaid, return
receipt requested, or by a national delivery service, addressed as follows:

            Seller:           RoweCom, Inc.
                              Attn: Richard Rowe
                              725 Concord Avenue
                              Cambridge, MA 02138
                              617-497-5800    fax 617-492-6778

                                       13
<PAGE>

            with a
            copy to:          RoweCom, Inc.
                              15 Southwest Park
                              Westwood, MA 02090
                              781-                    fax 781

            With a
            Copy to:          Richard A. Toelke, Esq.
                              Bingham Dana
                              150 Federal Street
                              Boston, MA 02110-1726
                              Tel: 617-951-8000       Fax: 617-951-8736

            Purchaser:        Sixty-Five Lafayette Road, LLC
                              Attn: Steven Sands
                              Two Wells Avenue
                              Newton, MA 02459
                              Tel: 617-969-2000       Fax: 617-332-7311

            With a
            Copy to:          Leonard S. Lakin, Esq.
                              Lakin, Solomon & Gold
                              10 Laurel Avenue
                              Wellesley, MA 02481
                              Tel: 781-431-2577       Fax: 781-237-7001

            With a
            Copy to:          Bruce Levine
                              CB Richard Ellis/Whittier Partners
                              600 Atlantic Avenue
                              Boston, MA 02210
                              Tel: 617-912-7082       Fax: 781-237-7001

            With a
            Copy to:          Bruce R. Mathias, Trustee of Lafayette
                              Exchange Trust
                              10 Laurel Avenue
                              Wellesley, MA 02481
                              Tel: 781-237-3077       Fax: 781-237-7887

      Any party may change its address for notice by written notice given to the
other in the manner provided in this Section 15.5. Any such communication,
notice or demand shall be deemed to have been duly given or served on the date
personally served, if by personal service, or on the date shown on the return
receipt or other evidence of delivery, if mailed or delivered. All notices
pursuant to this Agreement from Purchaser to Seller of from Seller to Purchaser
will be effective if executed by and sent by their

                                       14
<PAGE>

respective attorneys.

      15.7 Wherever possible, each provision of this Agreement shall be
interpreted in such a manner as to be valid under applicable law, but, if any
provision of this Agreement shall be invalid or prohibited thereunder, such
invalidity or prohibition shall be construed as if such invalid or prohibited
provision had not been inserted herein and shall not affect the remainder of
such provision or the remaining provisions of this Agreement.

      15.8 The language in all parts of this Agreement shall be in all cases
construed simply according to its fair meaning and not strictly for or against
any of the parties hereto for any reason, including, without limitation, by
virtue of the fact that it may have been drafted or prepared by counsel for one
of the parties, it being recognized that both Purchaser and Seller have
contributed materially and substantially to the preparation of this Agreement.
Section and Paragraph headings of this Agreement are solely for convenience of
reference and shall not govern the interpretation of any of the provisions of
this Agreement.

      15.9 This Agreement shall be governed by and construed in accordance with
the laws of the Commonwealth of Massachusetts.

      15.10 This Agreement shall be binding upon and inure to the benefit of
each of the parties hereto and to their respective transferees, successors,
and assigns; provided, however, that neither this Agreement nor any of the
rights and obligations of Purchaser and Seller hereunder shall be transferred
or assigned without the prior written consent of the other party except that
Purchaser intends to assign this Agreement to Bruce R. Mathias, Trustee of
Lafayette Exchange Trust as part of a sec. 1031 exchange without requiring
permission of Seller.

      15.11 All Exhibits attached hereto are incorporated herein by reference.

      15.12 Notwithstanding anything to the contrary contained herein, this
Agreement shall not be deemed or construed to make the parties hereto partners
or joint venturers, or to render either party liable for any of the debts or
obligations of the other, it being the intention of the parties merely to create
the relationship of Seller and Purchaser with respect to the Property to be
conveyed as contemplated hereby.

      15.13 The parties hereby agree that is either party shall record this
Agreement, it shall be deemed to be a default by the recording party which shall
enable the non-recording party, in its sole discretion, to terminate this
Agreement upon written notice to the other party.

                                       15
<PAGE>

      IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed under seal by their duly authorized representatives as of the day and
year first above written.

                                        SELLER:
                                        RoweCom, Inc.

                                        By: /s/ [ILLEGIBLE]
                                            ------------------------------------
                                            Name:
                                            Title:

                                        PURCHASER:
                                        Sixty-Five Lafayette Road, LLC

                                        By: /s/ [ILLEGIBLE]
                                            ------------------------------------
                                            Name:
                                            Title:

                                        By: /s/ [ILLEGIBLE]
                                            ------------------------------------
                                            Name:
                                            Title:

                                       16
<PAGE>

                                   EXHIBIT A
                                       TO
                          PURCHASE AND SALE AGREEMENT
                                 By and Between
                             RoweCom, Inc., Seller
                                      and
                   Sixty-Five Lafayette Road, LLC, Purchaser

                            Description of the Land

      Two parcels of land with the buildings and improvements thereon, situated
in the Southwest Industrial Park, Westwood, Norfolk County, Massachusetts,
bounded and described as follows:

PARCEL I

Northwesterly     by a way leading to Route 1 and shown on a plan hereinafter
                  mentioned as "Southwest Park", by two lines measuring
                  respectively, 173.32 feet and 72.39 feet;

Northeasterly     by Lot I referred to on said plan, 235.68 feet;

Southeasterly     by land now or formerly of the New York, New Haven and
                  Hartford Railroad (Midland Division), 198.05 feet;

Southwesterly,
Southerly and
Southeasterly     all by Lot 6B shown on said plan, by five lines measuring
                  respectively, 9.17 feet, 15.79 feet, 8.61 feet, 4.13 feet and
                  14.32 feet; and

Southwesterly     by Parcel II hereinafter described, 201.31 feet.

Containing 54,690 square feet of land and being shown as Lot 6A on a plan
entitled "Plan of Land in Westwood, Mass.", dated April 30, 1964 by Pilling
Engineering Company, Inc., recorded with Norfolk Deeds in Book 4163, Page 725.

PARCEL II

Northwesterly     by a way leading to Boston-Providence Pike, by two lines
                  measuring respectively, 128.27 feet and 105.00 feet;

Westerly          by a curved line forming the intersection of said way and said
                  Pike, 43.18 feet;

Southwesterly     by said Pike by two lines measuring respectively 123.33 feet
                  and

<PAGE>

                  117.49 feet;

Southeasterly     by land now or formerly of the New York, New Haven and
                  Hartford Railroad (Midland Division) 374.25 feet; and

Northeasterly     by Lot 6 shown on a plan hereinafter mentioned, 230.06 feet.

Containing 72,999 square feet of land and being shown on a plan entitled "Plan
of Land in Westwood, Mass. for Southwest Park Trust", dated February 19, 1963 by
Pillling Engineering Company, Inc., recorded with said Deeds in Plan Book 215,
Page 681.

<PAGE>

                                   EXHIBIT B
                                       TO
                          PURCHASE AND SALE AGREEMENT
                                 By and Between
                             RoweCom, Inc., Seller
                                      and
                   Sixty-Five Lafayette Road, LLC, Purchaser

     Escrow Agent's Deposit Money Escrow Instructions and Investment Escrow
                                  Instructions

<PAGE>

                                 DEPOSIT MONEY
                              ESCROW INSTRUCTIONS

DATE: NOV. 20, 2000

TO:   Chicago Title Insurance Company
      101 Federal Street
      Boston, MA 02110

PREMISES: 15-17 SOUTHWEST PARK, WESTWOOD, MA

BUYER:    SIXTY-FIVE LAFAYETTE ROAD, LLC (TO BE ASSIGNED TO BRUCE R. MATHIAS,
          TRUSTEE OF LAFAYETTE EXCHANGE TRUST - SEC 1031 EXCHANGE)

SELLER:   ROWECOM, INC.

      You are hereby requested to act as Escrow Agent in the above captioned
real estate purchase transaction. The following instructions, together with the
attached copy of the Purchase and Sale Agreement ("the Purchase Agreement"), are
submitted to you for the purpose of governing the closing and settlement of the
subject transaction.

      1. Buyer herewith deposits the sum of $ 200,000.00 ("the Deposit")
      representing the earnest money deposit made upon execution of the
      contract. The Deposit is to be held in an interest-bearing, FDIC-insured,
      money-market type account.

      2. Upon disbursement of the Deposit in accordance with this Agreement; all
      rights and obligations of the Escrow Agent shall be deemed to have been
      satisfied and the Buyer and Seller shall have no recourse against the
      Escrow Agent.

      3. Delivery or return of any deposit payment; notice or other
      communication concerning the Escrow may be made to any party by hand
      delivery (including overnight delivery services) or by registered or
      certified mail to the addresses set forth above.

      4. You are instructed to disburse the Deposit either (1) as directed
      pursuant to written instructions signed by Buyer and Seller, or (2) to
      either party in the event you receive a sworn affidavit from such party
      that it is entitled to the Deposit pursuant to the terms of the Purchase
      Agreement and that it has made written demand to the other party of such
      demand for disbursement of the Deposit as evidenced by a return receipt
      for delivery made as provided above in Paragraph 3, and you have not
      received within ten business days of the other party's receipt of demand
      for disbursement a written objection thereto; or (3) pursuant to a Final
      Determination (as herein defined).

      5. The duties of the Escrow Agent shall be determined solely by the
      express provisions of this Agreement and are purely ministerial in nature.
      If there is any dispute between the Parties hereto as to whether or not
      the Escrow Agent is obligated to disburse or release the funds held under
      and pursuant to this Agreement the Escrow Agent shall not be obligated to
      make such disbursement or delivery, but in such event shall hold the funds
      until receipt

<PAGE>

      by the Escrow Agent of an authorization in writing signed by all persons
      having an interest in said dispute, directing the disposition of the
      funds, or in the absence of such authorization, the Escrow Agent shall
      hold the funds until a final determination of the rights of the parties in
      an appropriate proceeding (a "Final Determination"). If such written
      authorization is not given, or proceedings for such determination are not
      begun and diligently continued, the Escrow Agent may, but is not required
      to, retain counsel and bring an appropriate action or proceeding for leave
      to deposit the funds pending such determination. The Escrow Agent shall be
      reimbursed for all costs and expenses incurred by it in connection with
      such action or proceeding, including reasonable attorneys' fees and
      disbursements, by the parties hereto. Upon delivery of the funds as
      provided herein, the Escrow Agent shall have no further liability
      hereunder. If threatened with litigation, the Escrow Agent is hereby
      authorized by the undersigned to interplead all interested parties in any
      court of competent jurisdiction and to deposit the funds with the clerk of
      the court, and thereupon the Escrow Agent shall be fully relieved and
      discharged of any further responsibility under this Agreement.

      6. The Escrow Agent shall not be liable for any mistake of fact or error
      of judgment or any acts or omissions of any kind unless caused by its
      willful misconduct or gross negligence. Parties hereto each release the
      Escrow Agent from liability for any act done or omitted to be done by the
      Escrow Agent in good faith (and without gross negligence or willful
      misconduct) in the performance of its obligations and duties hereunder.
      The Escrow Agent shall be entitled to rely on any instrument or signature
      believed by it to be genuine and may assume that any person purporting to
      give any writing, notice, or instruction in connection with this Agreement
      is duly authorized to do so by the party on whose behalf such writing,
      notice, or instruction is given.

      7. The undersigned hereby jointly and severally indemnify the Escrow Agent
      for and hold it harmless against any loss, liability, or expense incurred
      without negligence or bad faith on the part of the Escrow Agent arising
      out of or in connection with the acceptance of or the performance of its
      duties under this Agreement; as well as the costs and expenses, including
      reasonable attorneys' fees and disbursements, of defending against any
      claim or liability arising under this Agreement.

      8. This Agreement may be executed in any number of counterparts, each of
      which shall be deemed an original but all of which together shall
      constitute one and the same instrument.

      9. This Agreement may not be changed or modified except as agreed in a
      writing signed by each of the parties hereto. This Agreement shall be
      binding upon and inure to the benefit of the parties and their respective
      heirs, successors and assigns.

      10. This Agreement shall be construed in accordance with the laws of the
      Commonwealth of Massachusetts.

      11. The parties hereby acknowledge and agree that Federal Deposit
      Insurance for the Escrow Funds, if any, is limited to a cumulative maximum
      amount of $100,000.00 for each individual depositor for all of the
      depositor's accounts at the same or related institution. The

<PAGE>

      parties further hereby acknowledge and agree that certain banking
      instruments such as, but no limited to, repurchase agreements and letters
      of credit are not covered at all by Federal Deposit Insurance. The parties
      acknowledge and agree that the Escrow Agent shall have no obligation or
      liability with respect to insuring the Escrow Funds or with respect to the
      solvency of the depository institution, or otherwise with respect to the
      appropriateness of the depository institution for purposes of the
      deposit(s) contemplated hereby. Further, the parties understand the Escrow
      Agent assumes no responsibility for, nor will we hold same liable for, any
      loss occurring which arises from the fact that (a) the amount of the
      account or accounts contemplated hereby may cause the aggregate amount of
      any individual depositor's account or accounts to exceed $100,000.00, (b)
      that this excess amount is not insured by the Federal Deposit Insurance
      Corporation, or (c) that Federal Deposit Insurance is not available on
      certain types of bank instruments.

      12. This Escrow Agreement supplements and does not supersede the previous
      agreements between Buyer and Seller. As between Buyer and Seller the terms
      of such agreements shall prevail.

In witness whereof, the parties hereto have affixed their hands and seals as of
the date first set forth above.

Agreed and Consented To:

      SELLER: ROWECOM, INC.

      By: ______________________________________________________________________

      Name: ____________________________________________________________________

      Title: ___________________________________________________________________

      BUYER: SIXTY-FIVE LAFAYETTE ROAD, LLC

      By:                                             By:

      Name: STEVE SANDS                                           DAVID SANDS
            --------------------------------------------------------------------

      Title: ___________________________________________________________________
             MANAGER                                              MANAGER

      CHICAGO TITLE INSURANCE COMPANY

      By: ______________________________________________________________________

      Name: ____________________________________________________________________

      Title: ___________________________________________________________________

<PAGE>

                       INVESTMENT OF ESCROW INSTRUCTIONS

Date: NOV. 20, 2000

Escrow File No.:

To: Chicago Title Insurance Company

Subject to all of the terms of this instruction and the terms of the
above-captioned escrow agreement, you are authorized and directed to open an
account in the name of

ROWECOM, INC.                                      .
---------------------------------------------------
                  CUSTOMER

by Chicago Title Insurance Company as Escrow Agent, in the amount of
$200,000.00.

This account shall be opened at:

1. ________ Bank of Boston

2. ________ FLEET BANK

      OR
3. ________ Other LARGE BOSTON AREA BANK

(if a depository institution preference has not been stated by the customer,
Chicago Title Insurance Company will designate the depository as 1 or 2 above).

account shall be of the following type:
(a) ________ Savings Passbook Account
(b) ________ Certificate of Deposit
(c) ________ U.S. Treasury Bills
(d) ________ Repurchase Agreement
(e) ________ Commercial Paper
       X
(f) ________ Money Market Account
(g) ________ Other

The investment shall be for a term beginning on NOV. 20, 2000 and ending on or
before 12/18/00. This investment, with any accrued interest, will not be renewed
upon maturity unless other written instructions are received and authorized by
the parties to this agreement.

Interest or other income from this investment shall accrue for the account of
the parties to be divided pursuant to the agreement of the parties at the close
of escrow.

<PAGE>

Investment of Escrow Instructions
Page Two

All interest will accrue to and be reported to the Internal Revenue Service for
the account of:

Name: SIXTY FIVE LAFAYETTE ROAD, LLC - ATTN STEVEN SANDS
      --------------------------------------------------------------------------

Address: TWO WELLS AVE., NEWTON, MA 02459
         -----------------------------------------------------------------------

Telephone: 617-965-2000 x 2105
           ---------------------------------------------------------------------

Tax identification or social security no.: 04-3440685

A completed For W-9 for said taxpayer is/is no attached hereto.

Upon the depository's request, we will executed the appropriate Internal Revenue
Service Documentation for the giving or taxpayer identification information
relating to this account. We authorize Chicago Title Insurance company to
execute that documentation upon our inability or refusal to do so.

Chicago Title Insurance Company shall not be responsible for any penalties, or
loss of principal interest or any delays in the withdrawal of the funds which
may be imposed by the Depository as a result of the making or redeeming of the
investment pursuant to our instructions, nor shall Chicago Title Insurance
Company be liable for any loss or impairment of funds while those funds are in
the course of collection or while those funds are on deposit in a financial
institution if such loss or impairment results from the failure, insolvency or
suspension of the financial institution.

The funds deposited herewith are not to be invested unless all parties to this
escrow have agreed to this instruction in writing.

             SIXTY FIVE LAFAYETTE ROAD, LLC

Beneficiary: By
             --------------------------------------------
                  By
                     ------------------------------------

            ROWECOM, INC.
            ---------------------------------------------

            By
            ---------------------------------------------

Accepted:
CHICAGO TITLE INSURANCE COMPANY

By: ___________________________<PAGE>

                                                                   Exhibit 10.44

                                COMMERCIAL LEASE

      From the office of:
      Lakin, Solomon & Gold
      Ten Laurel Avenue
      Wellesley Hills, MA 02481

1.    PARTIES

Sixty-Five Lafayette Road, LLC, a Massachusetts limited liability company,
having an usual place of business at Two Wells Avenue, Newton, Massachusetts
02459, LESSOR, does hereby lease to RoweCom, Inc., a Massachusetts corporation
having an usual place of business at 15 Southwest Park, Westwood, Massachusetts
02090, LESSEE, which expression shall include the successors, executors,
administrators, and assigns of the LESSOR and the LESSEE, where the context so
admits, the following described premises:

2.    DEMISED PREMISES

The demised premises consists of the entire parcel of land containing
approximately 2.94 acres of land together with the building (the "Building") and
all improvements (the "Improvements") thereon (the Land, Building and
Improvements together hereinafter referred to as the "Demised Premises"), being
now known as and numbered 15-17 Southwest Park, Westwood, Norfolk County,
Massachusetts. The Demised Premises is more particularly described in a copy of
a deed hereto and marked "Exhibit A".

3.    SALE/LEASE BACK - CONDITION OF THE DEMISED PREMISES

This Lease has been entered into pursuant to a sale/lease back transaction by
and between the LESSEE, as the Seller of the Demised Premises, and the LESSOR,
as the Purchaser thereof. Because the LESSEE has owned and has occupied, and
continues to occupy, the Demised Premises, the LESSEE is aware of the condition
of the Demised Premises and the LESSEE agrees to lease the Demised Premises in
its present state and condition and will not look to the LESSOR for any repairs,
replacements or renovations thereto prior to the Commencement Date (as
hereinafter defined).

4.    TERM

The term (the "Term") shall be for seven (7) years, commencing on the date when
the LESSOR requires record title to the Demised Premises from the LESSEE (the
"Commencement Date") and ending on December 31, 2007.

5.    BASE RENT

The LESSEE shall pay to the LESSOR the annual base rent (the "Base Rent") in the
amount of $575,780.00 (41,122 s.f. X $14.00 p/s/f), during each of the first
three (3) years of the Term, the Base Rent to be payable in advance in monthly
installments of $47,975.67 on the first (1st) day of each and every month
commencing on the Commencement Date (which first monthly installment

<PAGE>

shall be paid on the Commencement Date and prorated if the Commencement Date
occurs after the first (1st) day of the month) and continuing until December 31,
2003. The annual Base Rent for the fourth (4th) and fifth (5th) years of the
Term shall be in the amount of $585,988.50 (41,122 s.f. x $14.25 p/s/f), the
Base Rent to be payable in advance in monthly installments of $48,832.38,
beginning on January 1, 2004 and continuing until December 31, 2005. The annual
Base Rent for the sixth (6th) and seventh (7th) years of the Term shall be in
the amount of $596,269.00 (41,122 s.f. X $14.50 p/s/f), the Base Rent to be
payable in advance in monthly installments of $49,689.08, beginning on January
1, 2006 and continuing until December 31, 2007. All payments of rent shall be
made by LESSEE to the LESSOR without notice or demand at such place as LESSOR
may from time to time designate. Rent paid after the fifth (5th) day of each
month shall be considered delinquent and, in such event, the LESSEE will pay the
LESSOR as additional rent a sum equal to five percent (5%) of the total monthly
rent due. Any acceptance of rent after the date payment is due shall not be a
waiver of the rights of the LESSOR to require that future payments made in the
manner and at the times herein specified.

6.    ADDITIONAL RENT

In addition to the Base Rent, the LESSEE shall begin to pay to the LESSOR
("Additional Rent"), on the first (1st) day of each and every month beginning on
the first (1st) day of January, 2001 and continuing during the balance of the
Term of this Lease. LESSEE shall pay for all costs and expenses incurred or
expected to be incurred by the LESSOR in connection with the Demised Premises
(the "Operating Costs"). The LESSOR shall provide the LESSEE with the amount of
the Operating Costs as soon as practicable after the beginning of each calendar
year, shall estimate the total Operating Costs for the then current year (which
shall be based both on actual experience and anticipated changes) and shall
notify the LESSEE in writing of the LESSEE'S share which shall be payable in
equal monthly installments during the then current year, retroactive to January
1 of the then current year. At such time, the LESSOR shall also determine the
actual Operating Costs for the preceding year and shall provide LESSEE with an
accounting thereof, and in the event that it is determined that the LESSEE has
either overpaid or underpaid during the preceding year, the LESSEE'S payments
each month for the then current year will be decreased proportionally to
reimburse the LESSEE for such overpayment or increased proportionally to
reimburse the LESSOR for such underpayment. The LESSOR, from time to time, and
at any time, during the course of any year, upon presentation of supporting
documentation, may readjust the LESSEE'S monthly payments of additional rent,
such adjustment to take effect beginning as of the first (1st) day of the month
following thirty (30) days written notification by the LESSOR to the LESSEE,
which readjustment shall be based on actual or anticipated changes in a) taxes
and b) Operating Costs for the then current year that were not included in the
original estimate for such year.

Upon the execution of this Lease, the LESSEE shall also pay to the LESSOR one
half (1/2) of the annual premiun for flood insurance (estimated to be $23,000.00
per year) and shall continue to pay one twelfth (1/12th) of the entire annual
premium each month as Additional Rent. In the event that the estimated amount
shall prove to be either too large or too small an appropriate adjustment shall
be made between the parties. After the expiration of one (1) year, provided that
there is no default by the LESSEE under the provisions of this LEASE, the LESSEE
shall not be required to make payments on account of the annual premium for
flood insurance, for a period of six (6) months.

                                       2
<PAGE>

The parties will cooperate with each other to attempt to secure a reduction in
the flood hazard insurance premium and to secure the best rate, the costs of
such action to be shared by the parties annually.

For purposes of this paragraph, Operating Costs shall include the following
LESSOR'S costs, expenses and charges incurred in connection with the Demised
Premises: a) real estate taxes including betterment assessments, b) insurance
premiums including hazard, liability and rent interruption insurance and, if
required, flood hazard insurance, c) water and sewer use charges (if paid by the
LESSOR,, d) management fees in the amount of seven thousand dollars per
($7,000.00) year; and e) the LESSEE'S proportionate share of any capital
expenditures made by the LESSOR as required under Paragraph 11 of this Lease.

In the event that the LESSEE occupies the Premises for a period which does not
include an entire Year, there shall be an appropriate adjustment made between
the LESSOR and the LESSEE.

LESSEE, upon written notice to LESSOR, shall have the right, at LESSEE'S sole
cost and expense, to examine the LESSOR'S records and computations used to
establish the Operating Costs, such examination to be at least five (5) business
days after receipt of such notice and to be at such reasonable time and place so
as not to unreasonably interfere with the business of the LESSOR. If the
discrepancy exceeds five per cent (5%) in the amount so charged to the LESSEE,
which discrepancy results in an overcharge to LESSEE, then the LESSOR shall pay
the reasonable cost of the LESSEE'S examination. In the event that the LESSEE'S
said examination discloses that there is a discrepancy in the amount of the
Operating Costs charged to the LESSEE, the LESSOR shall immediately repay to the
LESSEE any amount that the LESSEE had been overcharged.

7.    SECURITY DEPOSIT DUE UPON EXECUTION

A security deposit in the amount of $200,000.00 shall be paid upon the execution
of this Lease. At the sole option of the LESSOR, the obligation to provide a
security deposit may be satisfied by the LESSEE securing and depositing with the
LESSOR, an irrevocable letter of credit (the "LOC"), issued by a major a Boston
area bank or banking institution, and containing provisions that shall be
satisfactory to the LESSOR. If a LOC is issued and accepted by the LESSOR, the
LESSEE shall have the obligation to insure that the LOC remains in full force
and effect during the Term and the failure to do so, shall be deemed to be a
default under the provisions of this Lease. Provided that the LESSEE has
fulfilled its obligations under this Lease and does not owe the LESSOR any
monies under the provisions of this Lease, the LESSOR, shall return the LOC to
the LESSEE within ten (10) days after such termination. If the LESSEE owes the
LESSOR any such monies which are less than the face amount of the LOC, the
LESSOR, upon payment of such lesser amount by the LESSEE, shall then immediately
return the LOC to LESSEE. In the event that the LESSOR shall agree that the
security deposit may be made in cash instead of by a LOC, the LESSOR and the
LESSEE hereby agree that, in the event of default by the LESSEE under the
provisions of this Lease, the security deposit shall be considered to be prepaid
rent and can thereafter be immediately applied against future rent.

                                       3
<PAGE>

8.    UTILITIES

The LESSEE shall separately pay the cost of all electricity, gas and telephone
charges used on the Demised Premises for any purpose, including heat and air
conditioning, which shall be paid for directly by the LESSEE.

9.    USE OF PREMISES

The LESSEE shall use the Demised Premises for any legally permitted general
office and such related purposes as permitted by the Westwood zoning ordinances
and restrictions which may be applicable to the Demised Premises. The LESSOR
makes no representations or warranties as to the Westwood zoning ordinances or
as to any applicable restrictions. No activity on the Demised Premises shall be
conducted in an unlawful, improper, noisy or offensive manner, or contrary to
any applicable law, ordinances, rules, regulations or restrictions. In addition,
the LESSEE shall a) not store any hazardous substances (as defined in all
applicable federal and state laws, ordinances, rules and regulations) on the
Demised Premises except in full compliance with all applicable environmental
laws, rules and regulations and consistent with the LESSEE'S business
operations, b) shall not dump, flush or in any way introduce hazardous
substances or any other toxic substances into the sewage or other waste disposal
systems serving the Demised Premises except in full compliance with all
applicable environmental laws, rules and regulations and consistent with the
LESSEE's business operations, c) shall, if required by any applicable federal
and state laws, ordinances, rules and regulations keep the Demised Premises
equipped with all safety appliances and aids for the handicapped made applicable
to the Demised Premises by its specific use or manner of operations and d) shall
not use or permit any use of the Demised Premises which may invalidate or
increase the premiums for any insurance covering the Demised Premises. If the
LESSEE'S use of the Demised Premises shall result in an increase in the premiums
for any such insurance, the LESSEE shall pay the entire amount of such increase.

10.   MAINTENANCE OF AND CONDITION OF THE PREMISES BY LESSEE

The LESSEE shall have the sole responsibility for the entire maintenance, repair
and upkeep of the interior and exterior of the Demised Premises, including
structural repairs but excluding only any structural or systems replacements
which are to be performed by the LESSOR in accordance with Paragraph 11 of this
Lease (for which the LESSEE shall pay its proportionate share as Additional Rent
as provided in Paragraph 6 of this Lease and as computed in Paragraph 11 and
including within such sole responsibility of LESSEE without limitation a) all
plumbing, lighting and other fixtures included within and exclusively serving
the Demised Premises, b) all interior surfaces of doors, windows and walls, c)
all partitions and floors (which repairs are not structural in nature), d) all
heating, air conditioning and other machinery, appliances, utility
installations, pipes, wires, connections, boxes and meters and any and all other
such appliances and accessories, e) the exterior of all components of the
Building including, but not limited to, the roof, exterior walls, exterior
windows and doors and f) all other Improvements including, but not limited to,
the parking areas and walkways. The LESSEE shall also be responsible for the
landscaping and snow removal. The LESSEE shall not be responsible for any damage
caused by or due to the negligence of the LESSOR, its agents, servants or
employees.

In the event of damage to the Demised Premises, the LESSEE shall use the
insurance proceeds to repair such damage.

                                       4
<PAGE>

The LESSEE fails to keep and maintain the Demised Premises in good condition and
repair, and such failure continues for thirty (30) days after written notice
thereof, except where a shorter period is reasonably required because of an
emergency, the LESSOR, may, in its discretion, enter Demised Premises and make
such repairs and the LESSEE shall pay to the LESSOR, within thirty (30) days
after the LESSOR has provided proof to the LESSEE of payment for such repairs,
the amount so expended together with interest thereon at the rate of ten percent
(10%) per annum.

The LESSEE shall not permit the Demised Premises to be overloaded, damaged,
stripped, or defaced, nor suffer any waste.

The LESSEE may make structural or non-structural alterations or additions
(together the "Alterations") to the Demised Premises without the prior written
consent of the LESSOR so long as such Alterations do not exceed $50,000.00; but
may only make Alterations to the Demised Premises exceeding $50,000.00 if the
LESSEE shall first secure the written consent of the LESSOR, which consent may
not be unreasonably denied, withheld, conditioned or delayed by the LESSOR
provided that a) the LESSEE has provided the LESSOR with complete plans and
specifications, b) the LESSEE has provided the LESSOR with evidence that it has
sufficient funds to complete the renovations, c) the LESSEE shall secure lien
waivers from all contractors and subcontractors, d) the LESSEE shall secure all
necessary permits and approvals, e) the quality and design of the alterations or
additions shall be in keeping with the Building and f) if assent from any
mortgagee is required, such assent shall have been given. All such alterations
which the LESSEE undertakes shall be the LESSEE'S sole responsibility and at the
LESSEE'S sole cost and expense, a) shall be constructed in accordance with the
plans and specifications that have been submitted to and approved by the LESSOR,
b) shall be covered by appropriate insurance, c) shall be properly permitted, d)
shall be made in accordance with all applicable laws, ordinances and
restrictions and e) shall be of quality at least equal to the present
construction. The LESSEE shall not permit any mechanic's liens, or similar
liens, to attach to or to remain upon the Demised Premises for labor and
material furnished to the LESSEE or claimed to have been furnished to the LESSEE
in connection with work of any character performed or claimed to have been
performed at the direction of the LESSEE and the LESSEE shall cause any such
lien to be released of record, or released by providing a bond forthwith,
without cost to the LESSOR. Any alterations or improvements made by the LESSEE
shall become the property of the LESSOR at the termination of occupancy.

11.   STRUCTURAL AND SYSTEMS REPLACEMENTS BY LESSOR

The LESSOR shall have the responsibility only for the replacement of all
structural components to the Building and building systems including the
replacement of the HVAC and other such systems and mechanical components and the
resurfacing of the parking and walkway areas which such replacements are
generally treated as capital expenses and amortized over the useful life of the
replacement (the "Landlord Replacements"). In the event of damage by fire and
other casualty fully covered by insurance the LESSOR shall use the insurance
recovered to repair such damage. The LESSEE shall pay, as additional rent, its
proportionate share of the cost or the Landlord Replacements, such share to be
computed in accordance with the following example: if the useful life of a
Landlord Replacement is twenty (20) years, the LESSEE shall pay one twentieth
(1/20 ) of the cost each year beginning in the year such replacement is made and
continuing until the end of the term of this Lease. If the replacement is made
during the course of a year, the payment by the LESSEE shall be apportioned
accordingly.

                                       5
<PAGE>

If the LESSOR fails to make such Landlord Replacements required and such failure
continues for twenty (20) days after written notice thereof to the LESSOR, the
LESSEE may, unless the LESSOR has already undertaken to cure such failure, cause
such repairs to be made and the LESSOR agrees to pay to the LESSEE, within
thirty (30) days after the LESSEE provides proof of payment for such repairs,
the amount so expended together with interest thereon at the rate of ten percent
(10%) per annum. Any such amounts due from the LESSOR to the LESSEE may not be
offset against the Base Rent or Additional Rent to be paid by the LESSEE to the
LESSOR unless specifically permitted by the LESSOR in writing but there shall be
a fair and appropriate abatement of the Base Rent and the Additional Rent if the
LESSOR fails to make such Landlord Replacements within said twenty (20) days
after written notice. Such abatement shall be based on the portion of the
Demised Premises which is unusable due to the LESSOR'S failure to make such
Landlord Replacements.

12.   SIGNAGE

LESSEE shall be be entitled to place signs on the Demised Premises provided that
a) such sign is generally in keeping with other such signs in the area and b) is
in compliance with local ordinances. The cost for LESSEE'S exterior signs, and
the continued maintenance thereof, shall be the LESSEE'S sole responsibility and
cost. The LESSEE shall also be entitled to place signs in the interior of the
Building, at its sole cost and expense.

14.   LESSEE'S LIABILITY INSURANCE

The LESSEE shall procure and maintain in force at its expense during the term of
this lease and any extension thereof, comprehensive public liability insurance
with companies licensed to do business in Massachusetts and reasonably
acceptable to the LESSOR. Such coverage shall be adequate to protect against
public liability for damage claims through public use of or arising out of
accidents occurring in or around the Demised Premises, in a minimum amount of no
less than two million dollars ($2,000,000) for each occurrence and in the
minimum amount of three million dollars ($3,000,000) in the aggregate and three
hundred thousand dollars ($300,000) for property damage. All such insurance
policies shall provide coverage for contingent liability of the LESSOR on any
such claims or losses and shall name the LESSOR and the LESSEE, as additional
insureds, as their interests may appear. The LESSEE shall deposit with the
LESSOR certificates for such insurance at or prior to the commencement of the
term, and thereafter within thirty (30) days prior to the expiration of any such
policies. All such insurance shall provide that such policies shall not be
canceled without at least twenty (20) days prior written notice to each insured
and additional insured named therein.

14.1  LESSOR'S INSURANCE

The LESSOR shall procure and obtain in force during the term of this Lease,
insurance covering the Demised Premises insuring against loss by fire and other
casualties as are generally included in the so called "all risk" coverage, in an
amount adequate to rebuild the Building and Improvements, and also providing
such additional coverages that are commonly included in policies insuring
property similar to the Demised Premises including, but not limited to, coverage
for loss of rental income. If required, the LESSOR shall also obtain flood
hazard insurance. The Building and Improvements shall be revauled periodically
for determining the amount of coverage required to

                                       6
<PAGE>

rebuild same. All such policies shall provide that they shall not be cancelled
without at least twenty (20) days prior written notice to the LESSOR and to the
LESSEE. The LESSOR shall deposit with the LESSEE certificates for such insurance
at or prior to the commencement of the term, and thereafter within thirty (30)
days prior to the exopiration of such policies.

15.   ASSIGNMENT AND SUBLETTING

The LESSEE shall not assign this Lease or sublet the whole or any part of the
Premises, or permit the whole or any part of the Premises to be used by any
other party, without having first received the Lessor's prior written consent,
which consent may not be unreasonably withheld, denied, conditioned or delayed
by the LESSOR provided that all of the following conditions are met: a) the
proposed assignee or sublessee (together the "PA") shall be creditworthy and
shall have a financial worth which will enable it to fulfill its obligations
under this Lease or the sublease, as the case may be; b) that the PA shall have
a generally good reputation; c) that the PA shall not use the Premises for any
purpose which shall not be permitted by any law, ordinance, regulation or
restriction or which shall be incompatible with the other tenants in the
Building; and c) that, if required, such assignment shall be approved by a
mortgagee holding a mortgage covering the Demised Premises. A change in the
ownership of the LESSEE or a sale of the LESSEE'S business that results in a
change of control as presently exists shall not constitute an assignment of the
Lease for purposes of this paragraph. In the event that the LESSOR shall consent
to an assignment or subletting, the assignee or sublessee shall assume all of
the obligations of the LESSEE under this Lease and the LESSEE and the guarantor
of the LESSEE'S performance of its obligations under this Lease, if any, shall
continue to remain jointly and severally liable to the LESSOR for the payment of
all rent and for the full performance of the covenants and conditions of this
Lease.

In the event the LESSOR shall approve of any subletting or assignment of this
Lease, for which the rent is increased above the Base Rent as set forth in this
Lease, then one half (1/2) of such increase, after deducting the LESSEE'S
reasonable and necessary costs of procuring such sublessee or assignee, shall be
paid to the LESSOR by the LESSEE, assignee or subtenant on the same dates that
the payment of the Base Rent is due under the provisions of this Lease. Any
failure to make such additional payment shall be considered to be, and shall be
treated the same as, a default in the payment of the Base Rent and Additional
Rent under this Lease.

16.   SUBORDINATION TO MORTGAGES

This Lease shall be subject and subordinate to any and all mortgages and other
instruments in the nature of a mortgage (together the "Mortgage"), existing
prior to or placed subsequent to the date of the execution of this Lease. The
LESSEE shall, upon the request of the LESSOR, promptly execute and deliver all
such instruments as may be appropriate to subordinate this Lease, or to confirm
that it is subordinate, to any such Mortgage. The LESSOR shall obtain an
agreement from the holder of any such Mortgage that the LESSEE shall remain
undisturbed under this Lease in the event of foreclosure or transfer of the
Demised Premises by deed in lieu of foreclosure if the LESSEE is not in default
under any of the terms and provisions of this Lease.

17.   LESSOR'S ACCESS

The LESSOR or its agents, servants or employees may, at reasonable times, and
upon reasonable prior notice, except in the event of an emergency, enter to view
the Demised Premises and may,

                                       7
<PAGE>

object to the LESSEE'S obligations to make repairs set forth in Paragraph 10 of
this Lease, make repairs and alterations as the LESSOR should reasonably elect
to do provided that such repairs do not interfere with the LESSEE'S use thereof
and, at any time within twelve (12) months before the expiration of the Term of
this Lease, may show the Demised Premises to others, for the purpose of selling
or renting same, may affix to any suitable part of the Demised Premises a notice
for letting the Demised Premises or a portion or portions thereof, and keep the
same so affixed without hindrance or molestation.

18.   INDEMNIFICATION

The LESSEE shall save the LESSOR harmless from and against any and all loss and
damage occasioned by or resulting from LESSEE'S failure to maintain or repair
any portion of the Demised Premises for which it is responsible as set forth in
this Lease or from any nuisance made or suffered on the Demised Premises or from
the negligence of the LESSEE or any of its agents, servants or employees unless
in any or all such instance(s) such loss is caused by the neglect or actions of
the LESSOR

The LESSOR shall save the LESSEE harmless from and against any loss and damage
occasioned by the LESSOR'S negligence or failure to make Landlord repairs for
which the LESSOR is responsible as set forth in this Lease, or from the
negligence of the LESSOR or any of its agents, servants or employees while on
the Demised Premises unless such loss is caused by the neglect or actions of the
LESSEE.

19.   FIRE AND CASUALTY

Should a substantial portion of the the Building, be materially damaged by fire
or other casualty, the LESSOR shall repair the damage. If, despite reasonable
efforts of the LESSOR, the Building cannot be restored to a useable condition
within two hundred seventy (270) days after the occurrence of the damage, the
LESSEE, upon written notice to the LESSOR, may elect to terminate this Lease. In
any event, however, during the last one (1) year of the Term of this Lease, the
LESSOR may, in its sole discretion, terminate this Lease, unless the LESSOR and
the LESSEE shall otherwise mutually agree. The Base Rent and the Additional Rent
shall be apportioned (based on the portion of the Demised Premises which is
usable for the LESSEE'S normal business operations after the occurrence of a
casualty) and paid to the date of the termination of this Lease. LESSEE shall
have the right to terminate this Lease unless LESSOR gives written notice to
LESSEE within forty-five (45) days of such fire or other casualty, that LESSOR
intends to restore and reasonable anticipates that such restoration can be
completed within two hundred seventy (270) days after the occurrence of such
damage. When such fire or other casualty renders the Building substantially
unsuitable for its intended use. The LESSEE shall be required to pay the Base
Rent and the Additional Rent and other sums due hereunder only for the portion
of the Demised Premises that is usable for the LESSEE'S normal business
operations after the occurrence of the fire or other casualty until the
reconstruction is substantially complete.

20.   EMINENT DOMAIN

If the entire Demised Premises is taken under the power of eminent domain, this
Lease shall terminate as of the date that the LESSOR'S title has been divested
by such taking authority and the Base rent and the Additional Rent shall be
apportioned as of that date.

                                       8
<PAGE>

In the event that only a portion of the Demised Premises shall be taken, if such
taking is "substantial" as hereinafter defined, the LESSEE may by delivery of
notice in writing to the LESSOR within sixty (60) days following the date on
which a portion of LESSOR's title has been divested by such authority, terminate
this Lease. "Substantial" shall be defined to mean any taking which a) results
in the loss of reasonable access to the entrances of the Demised Premises; b)
results in the loss to the LESSEE of a material portion of the Demised Premises;
or c) results in a substantial and material loss of facilities of the Demised
Premises.

If the LESSEE elects not to terminate this Lease as aforesaid, this Lease shall
be unaffected by such taking except that the rent shall be reduced equitably
based upon the portion of the Demised Premises which is usable after the
LESSOR'S title has been divested by the taking authority. In the event that only
a portion of the Demised Premises shall be taken and this Lease is not
terminated as hereinabove provided, the LESSOR will, with reasonable diligence,
if adequate funds are available to it from the taking authority and permitted to
be so used by any mortgagee, restore the remaining portion of the Demised
Premises as nearly as possible to the same condition as it was prior to the such
taking. If such adequate funds are not available to LESSOR, and LESSOR elects
not to so restore the Property, either party may terminate this Lease upon
written notice to the other.

The LESSOR reserves, and the LESSEE grants to the LESSOR, all rights which the
LESSEE may have for damages or injury to the Demised Premises for any taking by
eminent domain, except for damage to the LESSEE's fixtures, property, or
equipment. LESSEE may make a separate claim for its leasehold interest and
moving expenses.

21.   DEFAULT AND BANKRUPTCY

In the event that:

(a) The LESSEE shall default in the payment of any installment of Base Rent,
Additional Rent or other sum due LESSOR as provided herein and such default
shall continue for ten (10) days after written notice from Lessor, provided that
no such written notice shall be required if there shall have been more than two
(2) such defaults within one (1) calendar year; or

(b) The LESSEE shall default in the observance or performance of any other of
the LESSEE'S covenants, agreements, or obligations hereunder and such default
shall not be corrected within sixty (60) days after the receipt of written
notice thereof or if such default cannot reasonable be cured within sixty (60)
days, such additional time as is necessary to effect the cure, provided LESSEE
has and continues to use all due diligence to effect the cure; or

(c) The LESSEE shall be declared a bankrupt or insolvent according to law, or if
any assignment shall be made of LESSEE'S property for the benefit of creditors;
or

(d) If a lien or other involuntary encumbrance in a material sum is filed
against tenant's leasehold and is not discharged or bonded off within sixty (60)
days;

then the LESSOR shall have the right thereafter, while such default continues,
to re-enter and take complete possession of the Demised Premises, to declare the
term of this Lease ended, and remove the LESSEE's effects, without prejudice to
any remedies which might be otherwise used for arrears of rent or other default.
The LESSEE shall remain fully responsible for all rent and other payments which
the LESSOR was entitled to receive during the balance of the term. In such event
the LESSOR agrees to use reasonable efforts to mitigate the LESSEE'S damages
which mitigation

                                       9
<PAGE>

shall take into account the rents which the LESSOR may thereafter receive from
any reletting of the Demised Premises after deducting all costs associated
therewith. Upon the occurrence of a default by the LESSEE, the LESSOR, without
being under any obligation to do so and without thereby waving such default, may
remedy such default for the account and at the expense of the LESSEE. If the
LESSOR makes any expenditure or incurs any obligations for the payment of money
in and enforcing its rights under this Lease, whether or not suit has been
instituted and including prosecuting and defending any action related thereto,
such sums paid or obligations incurred, including but not limited to reasinable
attorney's fees, with interest at the rate often percent per annum (10%) and
costs, shall be paid to the LESSOR by the LESSEE as Additional Rent.

If any sections of this Lease specify a grace or other period for certain
occurrances, which differ from the periods set forth in this section, the
shorter period shall prevail.

Any and all rights and remedies which the LESSOR may have under this Lease, and
at law and equity, shall be cumulative and shall not be deemed inconsistent with
each other, and two or more of such rights and remedies may be exercised at the
same time against the LESSEE and also, if applicable, against any other assignee
or sublessee insofar as permitted by law.

22.   NOTICE

Any notice from the LESSOR to the LESSEE relating to the Demised Premises or to
the occupancy thereof, shall be deemed duly served, if left at the Building
addressed to the LESSEE, or if mailed to the Building, by certified mail, return
receipt requested, postage prepaid, addressed as follows:

      RoweCom, Inc.
      15 Southwest Park
      Westwood, MA 02090

      with a copy to:

      Richard A. Toelke, Esq.
      Bingham Dana LLP
      150 Federal Street
      Boston, MA 02110-1726

or at such other address as the LESSEE may from time to time advise in writing.

Any notice from the LESSEE to the LESSOR relating to the Premises or to the
occupancy thereof, shall be deemed duly served, if mailed to the LESSOR by
certified mail, return receipt requested, postage prepaid, addressed to as
follows:

      Sixty-Five Lafayette Road, LLC
      c/o Steven Sands
      2 Wells Avenue
      Newton, MA 02459

                                       10
<PAGE>

      with a copy to:

      Leonard S. Lakin, Esq.
      Lakin, Solomon & Gold
      10 Laurel Avenue
      Wellesley Hills, MA 02481

      with a copy to:

      Richard Mulligan
      Levco Management Corp.
      145 Rosemary Street, Suite E
      Needham, MA 02494

or at such other address as the LESSOR may from time to time advise in writing.

      Any such notices by the LESSOR to the LESSEE may be made by hand delivery
to the Demised Premises, an officer or appropriate employee of the LESSEE to
sign an instrument acknowledging receipt thereof.

23.   ESTOPPEL CERTIFICATES

Each party agrees, at any time, and from time to time, as requested by the other
party, upon not less than ten (10) days prior written notice, to execute and
deliver to the other party a written statement that this Lease has not been
modified, is in full force and effect, certifying the dates when the base rent
and additional rent have been paid, and stating whether or not, to the best
knowledge of the signer, the other party is in default in the performance of any
of that party's obligations under this Lease.

24.   FORCE MAJEURE

In any case where either party is required to do any act, the time for the
performance thereof shall be extended by a period equal to any delay caused by
or resulting from Act of God, war, civil commotion, fire or other casualty,
labor difficulties, shortages of labor, materials or equipment, governmental
regulations or other causes beyond such party's reasonable control. This clause
shall not be applicable to any payment of rent or other charges due from the
LESSEE to the LESSOR or to any abatement rights of the LESSEE set forth in this
Lease, unless as otherwise specifically set forth elsewhere in this Lease.

25.   HOLDING OVER

Should the LESSEE hold over in possession of the Demised Premises after the
expiration of the Term of this Lease, such holding over shall not be deemed to
renew this Lease or to extend the Term thereof, but this Lease shall continue as
a tenancy from month to month upon the terms and conditions contained therein
except that the monthly Base Rent shall be one hundred fifty percent (150%) of
the Base Rent last payable by the LESSEE.

                                       11
<PAGE>

26.   SURRENDER

The LESSEE shall at the expiration or other termination of this Lease remove all
LESSEE's goods and effects from the Demised Premises (including, without hereby
limiting the generality of the foregoing, all signs and lettering affixed or
painted by the LESSEE, either inside or outside the Demised Premises or the
Building). If the LESSEE has made alterations to the Demised Premises which have
been approved by the LESSOR in writing, the LESSEE shall not be required to
reconfigure the Demised Premises to its configuration prior to such alteration.
The LESSEE shall deliver to LESSOR the Demised Premises and all keys, locks
thereto, and other fixtures connected therewith and all alterations and
additions made to or upon the Demised Premises, in good condition, reasonable
wear and tear and damage by fire or other casualty only excepted. In the event
of the LESSEE's failure to remove any of LESSEE's property from the Demised
Premises, the LESSOR is hereby authorized, without liability to the LESSEE for
loss or damage thereto, and at the sole risk of the LESSEE, to remove and store
any of the property at the LESSEE's sole expense, or to retain same under the
LESSOR's control or to sell at public or private sale, without notice, any or
all of the property not so removed and to apply the net proceeds of such sale to
the payment of any sum due hereunder, or to destroy such property.

27.   BUILDING ACCESS

The LESSEE shall have unlimited access to the Demised Premises, provided that
the LESSEE shall in no way obstruct or hinder the rights of others entitled to
access thereto.

28.   QUIET ENJOYMENT

The LESSEE, upon payment of all of the Base Rent, Additional Rent and other
amounts which may be due to the LESSOR hereunder and upon the prompt and full
performance of all the terms of this Lease, shall at all times during the Term
thereof, peaceably and quietly enjoy the Demised Premises without any
disturbance from the LESSOR or from any other person claiming through the
LESSOR.

29.   RECORDING

The LESSOR and LESSEE agree that either party shall, at the time of the
execution of this Lease, upon the request of the other, execute and deliver a
Notice of Lease, in recordable form, containing such information as is set forth
in the applicable statute.

30.   ENTIRE AGREEMENT

This Lease contains the entire and exclusive agreement between the parties
relating to the Demised Premises, and may not be modified except by written
instrument signed by both parties.

31.   MISCELLANEOUS PROVISIONS

A. This Lease shall be construed under the laws of the Commonwealth of
Massachusetts. The use of headings is for convenience only.

                                       12
<PAGE>

B. The LESSOR and the LESSEE, to the extent possible, shall cause each Insurance
policy carried by them to provide that the insurance carrier waives all rights
of recovery by way of subrogation against the other party.

C. LESSEE specifically agrees to look solely to LESSOR'S interest in the
Property for recovery of any judgment from LESSOR, it being specifically agreed
that neither LESSOR nor trustee, beneficiary, agent or partner of LESSOR shall
ever under any circumstances be personally liable for any such judgment or for
the payment of any monetary obligation to LESSEE. The word "LESSOR" as used in
this Lease shall mean only the owner for the time being of the landlord's
interest in this Lease, and in the event of any transfer of the landlord's
interest therein, the transferor shall cease to be liable for and shall be
released from all liability for the performance and observance of any agreements
or conditions on the part of LESSOR to be performed or observed subsequent to
the time of such transfer, it being understood and agreed that from and after
such transfer LESSEE shall look solely to the transferee for the performance and
observance of such agreements and conditions.

D. This Lease may be signed in counterpart.

(THE BALANCE OF THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK)

                                       13
<PAGE>

IN WITNESS WHEREOF, the said parties hereunto set their hands and seals this
18th day of December, 2000.

                                        LESSOR:
                                        Sixty-Five Lafayette Road, LLC

                                        By: /s/ [ILLEGIBLE]
                                            ------------------------------------
Witness /s/ [ILLEGIBLE]                     Name:
                                            Title: Manager

                                        By: /s/ David Sands
                                            ------------------------------------
Witness /s/ [ILLEGIBLE]                     Name: David Sands
                                            Title: Manager

                                        LESSER
                                        RoweCom, Inc.

                                        By: /s/ Richard Rowe
                                            ------------------------------------
Witness                                     Name: Richard Rowe
                                            Title: President

                                       14

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00024-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00024-of-00352.parquet"}]]