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                                                                   EXHIBIT 10.45


                                    SUBLEASE

THIS SUBLEASE dated January 1, 2004 between ePresence, Inc. (the "Sublandlord")
and Switchboard, Inc. (the "Subtenant").

                                    ARTICLE I

                                 REFERENCE DATA

         1.1 Subjects Referred To.

         Each reference in this Sublease to any of the following subjects shall
be construed to incorporate the data stated for that subject in this Section
1.1:

Date of Sublease:          January 1, 2004

Sublandlord:               ePresence, Inc., a Massachusetts corporation

Sublandlord's Address:     120 Flanders Road, Westborough, Massachusetts 01581

Subtenant:                 Switchboard, Inc., a Delaware corporation

Subtenant's Address:       120 Flanders Road, Westborough, Massachusetts 01581

Headlandlord:              Commonwealth Westborough Limited Partnership

Headlandlord's Address     c/o J.F. White Properties, Inc.
                           One Gateway Center, Suite 500
                           Newton, MA 02158

Headlease:                 Lease Agreement dated April 21, 1989 by and between
                           CB Westborough C limited Partnership, as landlord,
                           predecessor in interest to (the "Headlandlord" and
                           Sublandlord as tenant, (as amended or otherwise
                           modified from time to time, the "Master Lease").
                           Capitalized terms used but not defined herein have
                           the same meanings as the have in the Master Lease.

Headlease Premises:        The premises situated at 120 Flanders Road,
                           Westborough, Massachusetts, as described in the
                           Headlease, containing approximately 79,203 rentable
                           square feet (constituting all of the rentable square
                           feet in the building) (the "Building").

Sublease Premises:         The Sublease Premises are shown in Exhibit B attached
                           hereto ("Sublease Premises").

Rentable Floor Area
Of Premises:               17,463 on the first floor of the Building including
                           common areas.

Commencement Date:         January 1, 2004

Term Expiration Date:      September 30, 2005
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Rent Commencement Date:    January 1, 2004

Monthly Fixed Rent:        $17,463.00  ($12.00 per Sq. Ft.)

Security Deposit:          None

Utilities:                 All provided except for electricity, telephone and
                           Internet connectivity.

Electricity:               Separately metered, paid for by Subtenant directly to
                           utility company.

Permitted Uses:            All permitted uses in Headlease.

Parking Spaces             Under the terms of the Headlease, Subtenant, at
                           Subtenant's expense may install several visitor
                           parking spaces in front of the entrance to the
                           Premises. Subtenant shall be entitled to use of an
                           additional 100 general parking spaces.

Signs:                     Subject to signage criteria of Headlandlord under the
                           terms of the Headlease, Subtenant, at Subtenants
                           expense, may place signage at the entrance to the
                           Sublease Premises.

Cafeteria:                 Subtenant shall be responsible for the operation and
                           the use of the cafeteria during the term of the
                           Sublease.  Sublandlord shall provide a $2000.00 per
                           month subsidy to Subtenant to compensate for use by
                           other subtenants in accordance with Article 7.9
                           herein.

Health Club Access:        Ten (10) passes as included in Monthly Fixed Rent.

         1.2 Exhibits

         The exhibits listed below in this section are incorporated in this
Sublease by reference and are to be construed as part of this Sublease.

         EXHIBIT A         Headlease

         EXHIBIT B         Floor Plan of Premises
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                                   ARTICLE II

                                PREMISES AND TERM

         2.1 Premises. Subject to and with the benefit of the provisions of this
Sublease, Sublandlord hereby subleases the Sublease Premises to Subtenant, and
Subtenant subleases the Sublease Premises from Sublandlord.

         The Sublease Premises are subleased in their condition "as is" on the
Commencement Date.

         2.2 Term. To have and to hold beginning on the Commencement Date and
continuing until the Term Expiration Date (the "Term"), subject to earlier
termination as provided herein.
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                                   ARTICLE III

                                      RENT

         3.1 Monthly Fixed Rent. Subtenant shall Pay Sublandlord the Monthly
Fixed Rent in advance on the first calendar day of each month included in the
Term, Commencing on the Rent Commencement Date. Monthly Fixed Rent shall include
HVAC, security and nightly janitorial service five (5) days per week.

         3.2 Additional Rent. Pursuant to the Headlease, Sublandlord is required
to pay 100% of all operating, tax, maintenance and repair costs for the Building
(as such terms are defined in the Headlease), and such other amounts payable as
in the Headlease (collectively, the "Operating Costs"). Subtenant shall pay
Sublandlord as additional rent hereunder, 22% of any increase over the base year
of all Operating Costs allocable to the periods of time included in the Term
(the "Additional Rent"). The Base Year for Operating Costs and Taxes are 2004.
Subtenant shall pay such amounts within ten (10) days of billing by Sublandlord,
which bills shall include, where applicable, copies of the applicable statements
from Headlandlord. Any surplus shall be promptly refunded to Subtenant and
Subtenant shall promptly pay any deficit in such payments after the Headlandlord
finally determines the amounts payable by the Sublandlord under the Headlease.
Capital repairs and repairs to the roof, structural elements and Building
systems shall be the sole responsibility of the Sublandlord and shall not be
included in the Operating Costs.

         3.3 Electricity. A separate meter for the measurement of electric
consumption has been installed covering the Premises. Subtenant shall pay for
such electric consumption directly to the utility company providing such
service.

         3.4 Telephone. Subtenant shall be responsible for payment for internal
telephone switches, handsets, connectivity and maintenance.

         3.5 Internet Connectivity. Subtenant shall be responsible for payment
for its Internet connectivity.

         3.6 Payments. All payments of Monthly Fixed Rent and Additional Rent
shall be made to Sublandlord at Sublandlord's Address set forth in Section 1.1,
or to such other address as Sublandlord may designate by notice to Subtenant
from time to time.
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                                   ARTICLE IV

                              SUBTENANT'S CONENANTS

         Subtenant covenants during the Term and such further time as Subtenant
occupies any part of the Premises:

         4.1 Subtenant's Payments. Subtenant shall pay all Monthly Fixed Rent,
Additional Rent and any other amounts payable when due.

         4.2 Maintenance and Repair. Subtenant shall, at its own cost and
expense, keep and maintain all parts of the interior of the Premises in good
condition in accordance with the Headlease.

         4.3 Occupancy and Use. Subtenant shall not use the Sublease Premises
for any uses other than the Permitted Uses, and shall not make use of the
Sublease Premises which is prohibited by any applicable law, ordinance, code,
regulation, license, permit, variances or governmental order.

         4.4 Alterations and additions. Subtenant shall not make any
improvements, repairs, alterations, replacements, decorations and/or additions
to the Premises without first obtaining the written approval of the Sublandlord,
which approval shall not be unreasonably withheld or delayed, and the written
approval of the Headlandlord on the terms and conditions set forth in the
Headlease.

         All construction work required or permitted by this Sublease shall be
done in a good and workmanlike manner and in compliance with all applicable laws
and all lawful ordinances, regulations and orders of governmental authority and
insurers of the Building.

         4.5 Assignment and Subletting. Except with Sublandlord's prior written
consent, which consent shall not be unreasonably withheld or delayed, Subtenant
shall not assign, transfer, mortgage or pledge this Sublease, or sublease (which
term shall be deemed to include the granting of concessions and licenses and the
like) all or any part of the Premises, or suffer or permit this Sublease or the
leasehold estate hereby created or any other rights arising under this Sublease
to be assigned, transferred or encumbered, in whole or in part, whether
voluntarily, involuntarily or by operation of law, or permit the occupancy of
the Premises by anyone other than Subtenant. Any attempted assignment, transfer,
mortgage, pledge, sublease or encumbrance without such consent shall be void.

         In the event that any assignee or transferee of Subtenant pays to
Subtenant any amount in excess of the Monthly Fixed Rent, Additional Rent and
any amounts and/or charges then payable hereunder, Subtenant shall promptly pay
one hundred (100) percent of said excess to Sublandlord as and when received by
Subtenant. If Subtenant shall receive from any assignee or transferee, either
directly or indirectly, any consideration for the assignment of this Sublease,
either in the form of cash, goods or services, Subtenant shall pay an amount
equivalent to one hundred (100) percent of such consideration to Sublandlord as
and when received by Subtenant.

         Notwithstanding the foregoing, any assignment, transfer, mortgage or
pledge of this Sublease is subject to and conditioned upon receipt of the prior
written consent of the Headlandlord as provided in the Headlease.
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         No assignment or subletting shall affect the continuing primary
liability of Subtenant (which, following the assignment, shall be joint and
several with the assignee).

         4.6 Indemnification. Except to the extent caused by the gross
negligence or willful misconduct of Sublandlord, its agents, servants or
employees, Subtenant shall indemnify and hold harmless Sublandlord,
Sublandlord's agents and employees, from and against any and all claims,
demands, suits, judgments, liabilities, costs and expenses, including reasonable
attorneys' fees and damages, both real and alleged, arising out of or in
connection with Subtenant's use and possession of the Premises, or arising out
of the failure of Subtenant, its agents, contractors or employees to perform any
covenant, term or condition of this Sublease or the Headlease to be performed by
the Subtenant hereunder, or any injury to person or damage to property on or
about the Sublease Premises, resulting in part or whole by the negligence or
misconduct of Subtenant, its agents, servants or employees. Sublandlord agrees
to indemnify and hold Subtenant harmless from and against any and all claims,
demands, suits, judgments, liabilities, costs and expenses, including reasonable
attorneys' fees, arising out of the failure of Sublandlord, its agents,
contractors or employees to perform any covenant, term or condition of this
Sublease or of the Headlease to be performed by Sublandlord Hereunder.

         4.7 Insurance. Subtenant shall maintain in responsible companies with a
general policy rating of A or better and a financial class of VI or better by
A.M. Best, Inc. and qualified to do business and in good standing in
Massachusetts, comprehensive general liability insurance covering the Premises
insuring Sublandlord and Headlandlord as well as Subtenant, with limits which
shall at the commencement of the term, be at least $2,000,000 per occurrence in
respect to injury to person (including death) and from time to time during the
Term shall be for such higher limits, if any, as are customarily carried in the
Marlborough and Westborough areas with respect to similar properties, property
damage insurance which shall at the commencement of the Term be at least
$500,000 per occurrence in respect to property damage or destruction, including
loss or use thereof and worker's compensation insurance with statutory limits
covering all of Subtenant's employees working in the Premises. In addition,
Subtenant shall be responsible for insuring its personal property. Prior to the
Commencement Date, Subtenant shall deposit promptly with Sublandlord,
certificates of such insurance naming Sublandlord and Headlandlord as additional
insured, and all renewals thereof not less than fifteen (15) days prior to
expiration bearing the endorsement that the policies will not be cancelled or
change to reduce insurance provided thereby until after thirty (30) days written
notice to Sublandlord.
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                                    ARTICLE V

                               CASUALTY AND TAKING

         5.1 Termination of Headlease. In the event that during the Term, all or
any part of the Premises or the Headlease Premises are destroyed or damaged by
fire or other casualty, or taken by eminent domain, and either Sublandlord or
Headlandlord terminates the Headlease pursuant to its terms because of such
damage, destruction or taking, then this Sublease shall likewise terminate on
the same date that the Headlease terminates. Sublandlord shall give Subtenant
prompt notice of such termination and the date on which it shall occur.

         5.2 Repair and Restoration. In the event any such damage, destruction
or taking of the Premises and this Sublease is not terminated pursuant to
section 5.1 above, then Sublandlord shall use reasonable effort to cause
Headlandlord to repair and restore the Premises to the extent required by the
terms of the Headlease.

         5.3 Reservation of Award. Any and all rights to receive awards made for
damages to the Premises and the leasehold hereby created accruing by reason of
exercise of eminent domain or by reason of anything lawfully done in pursuance
of public or other authority are reserved to Sublandlord and Headlandlord.
Subtenant hereby releases and assigns to Sublandlord and Headlandlord all
Subtenant's rights to such awards and covenants to deliver such further
assignments and assurances thereof as Sublandlord and Headlandlord may from time
to time request.
<PAGE>
                                   ARTICLE VI

                                    HEADLEASE

         6.1 Sublease Subject to Headlease. This Sublease is subject to the
Headlease. Subject to the terms of this Section 6.1, all terms and conditions of
the Headlease are incorporated into and made a part of this Sublease as if
Sublandlord were the landlord thereunder and Subtenant were the tenant. In case
of a conflict between the incorporated provisions of the Headlease and the
remaining provisions of this Sublease, the later shall control. Subtenant
assumes and agrees to perform the tenant's obligations under the Headlease
during the Term, except that the obligation to pay rent or other amounts to
Headlandlord under the Headlease shall not be an obligation of Subtenant, and
Subtenant shall pay the rent to Sublandlord under this Sublease. Subtenant shall
not commit or suffer any act or omission that will violate any of the provisions
of the Headlease.

         If the Headlease terminates as a result of a default or breach of the
Subtenant under this Sublease and/or the Headlease, then the Subtenant shall be
liable to the Sublandlord for the direct damages suffered as a result of such
termination. Subtenant covenants not to commit or suffer any act or omission
that will violate the Headlease.

         6.2 Excluded Obligations. Notwithstanding anything to the contrary
herein, the incorporated provisions of the Headlease are amended or qualified as
follows:

         i. Sublandlord shall not be liable under any circumstances for a loss
or injury to property, or interference with Subtenant's business, however
occurring, and incidental to any failure to furnish any utilities or services.

         ii. Sublandlord shall have no responsibility to perform or construct
(or to pay the cost of performing or constructing) any repair, maintenance or
improvement in or to the Sublease Premises, except as specifically set forth in
Section 2.1 of this Sublease, and except for repair and maintenance of the
Sublease Premises' HVAC systems, plumbing systems and twenty-four (24) hour card
access system.

         iii. Rent shall be abated under this Sublease only to the extent that
Sublandlord receives a corresponding rent abatement under the Headlease.

         iv. Wherever the Headlease grants to Sublandlord a grace or cure
period, the corresponding grace or cure period under this Sublease shall be two
(2) business days shorter in duration.

         The parties acknowledge that Sublandlord's ability to satisfy certain
of its obligations to Subtenant under this Sublease is contingent upon the full
and timely performance of Headlandlord's obligations under the Headlease. The
parties further acknowledge that, while Sublandlord will use reasonable efforts
to cause Headlandlord to perform its obligations under the Headlease,
Sublandlord will not be liable to Subtenant for any breach of Sublandlord's
obligations under this Sublease, nor shall any breach diminish Sublandlord's
rights hereunder,
<PAGE>
where the same is caused by or attributable to failure of the Headlandlord to
perform its obligations under the Headlease.

         6.3 Headlandlord's Rights. Headlandlord shall have all rights with
respect to the Sublease Premises which it has reserved to itself as landlord
under the Headlease.

         6.4 Termination of Headlease. In the event that Headlandlord terminates
the Headlease pursuant to its terms or the Headlease otherwise terminates or
Expires, this Sublease shall likewise simultaneously terminate.
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                                   ARTICLE VII

                                  MISCELLANEOUS

         7.1 Notices from One Party to the Other. All notices required or
permitted hereunder shall be in writing, duly signed by the party giving such
notice and transmitted by prepaid registered or certified mail, return receipt
requested, by telegram or telefax, or delivered by hand and addressed as
follows:

         to Sublandlord:            ePresence, Inc.
                                    120 Flanders Road
                                    Westborough, MA 01581
                                    Fax. No. (508) 836 3281
                                    Attn. Contracts and Legal Dept.

         To Subtenant:              Switchboard, Inc.
                                    120 Flanders Road
                                    Westborough, MA 01581
                                    Fax. No. (508) 898 8222
                                    Attn. General Counsel

Or to such other address as Sublandlord or Subtenant shall designate by written
notice to each other. Any notice shall be deemed duly given on the second
business day following the date of mailing, or when delivered to such address by
hand, or if transmitted by telefax or telegram, on the business day received.

         7.2 Estoppel Certificates. Upon not less than twenty (20) days prior
notice by the Sublandlord, Subtenant shall execute, acknowledge and deliver to
Sublandlord a statement in writing, addressed to such person as Sublandlord
shall designate, certifying (a) that this Sublease is unmodified and in full
force and effect, (b) the dates to which Monthly Fixed Rent, additional Rent
have been paid, and (c) that Sublandlord is not in default hereunder (or if in
default, specifying the nature of such default in reasonable detail). The person
to whom it is addressed as to the facts stated therein may rely upon any such
certificate.

         7.3 Brokerage. Subtenant and Sublandlord mutually represent and warrant
that they have dealt with no broker in connection with this transaction. Each
agrees to defend, indemnify and save the other harmless from and against any and
all costs, expenses or liability for any compensation, commission or charges
claimed by any broker or agent with respect to the indemnifying party's dealings
in connection with this Sublease.

         7.4 Applicable Law. This Sublease shall be governed and construed in
accordance with the laws of the Commonwealth of Massachusetts.

         7.5 Security Deposit. None required.
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         7.6 Construction. If any terms, covenant, condition or provision of
this Sublease or the application thereof to any person or circumstances shall be
declared invalid or unenforceable by the final ruling of a court of competent
jurisdiction having final review, the remaining terms, covenants, conditions and
provisions of this sublease and there application to persons or circumstances
shall not be affected thereby and shall continue to be enforced and recognized
as valid agreements of the parties.

         This Sublease constitutes the entire agreement between the parties
hereto with respect to the transactions contemplated herein, and it supercedes
all prior discussions, undertakings or agreements, including without limitations
the Offer to Sublease, between the parties.

         There are no oral or written agreements between Sublandlord and
Subtenant affecting this Sublease. This Sublease may be amended, and the
provisions hereof may be waived or modified, only by instruments in writing
executed by authorized representatives of Sublandlord and Subtenant.

         The titles of the several Articles and Sections contained herein are
for convenience only and shall not be considered in construing this Sublease.

         Unless repugnant to the context, the words "Sublandlord" and
"Subtenant" appearing in this Sublease shall be construed to mean those named
above and their respective heirs, executors, administrators, successor and
assigns, and those claiming through or under them respectively. If there be more
than one tenant, the obligations imposed by this Sublease upon Subtenant shall
be joint and several.

         7.7 Access and Security. Normal Building hours shall be from 7:00a.m.
to 6:00p.m. Monday through Friday. The Building has a twenty-four (24) hour card
access system. Subtenant shall be responsible for its own security access at the
entrance to the Premises.

         7.8 Signs. Subject to the prior written approval and signage criteria
of Headlandlord under the terms of the Headlease, Subtenant, at Subtenant's
expense, may place signage at the side entrance to the Premises.

         7.9 Cafeteria. Subtenant, during the term of this Sublease, shall
responsible for the operation of the cafeteria located in the common areas of
the Premises. In consideration for the use by other subtenants in the Premises,
Sublandlord shall issue a $2000.00 subsidy to Subtenant, provided that Subtenant
has fulfilled its obligation in this regard, and such subsidy shall be applied
in arrears against the base rent of each subsequent month.

         7.10 Health Club Access. Sublandlord shall make available to Subtenant,
at no additional cost to Subtenant, ten (10) passes to the health club located
in the Building for use during the Term of this Sublease.


         THIS SUBLEASE is executed as a sealed instrument in two or more
counterparts on the day and year first written above


SUBLANDLORD                                 SUBTENANT

EPRESENCE, INC.                             SWITCHBOARD, INC.



By: /s/ Richard M. Spaulding                By: /s/ Robert P. Orlando
    --------------------------------            ------------------------------
    Name: Richard M. Spaulding                  Name: Robert P. Orlando
    Title: Senior Vice President and            Title: Vice President and
           Chief Financial Officer                     Chief Financial Officer

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                                  ATTACHMENT A

                                    HEADLEASE
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                                  ATTACHMENT B

                             FLOOR PLAN OF PREMISES