AMENDMENT #6 TO LEASE
This Amendment, dated as of April 17, 2001, is between Andover Mills Realty Limited Partnership ("Landlord")
and CMGI, Inc. ("Tenant").
2.1 Landlord and Tenant have entered into Lease, dated as of April 12, 1999, for space in Brickstone Square in
Andover, Massachusetts (as now or hereafter amended, the "Lease"). Unless otherwise defined, terms used in
this Amendment have the same meanings as those used in the Lease.
2.2 Tenant wishes to grant to Landlord the right and option to terminate the Lease with respect to Offer Space
#2, consisting of 9,472 s.f. of agreed rentable area on the 2nd Floor of Building 200. The parties hope that
Landlord will be able to lease Offer Space #2 to others and then exercise this termination option, although
Landlord is not obligated either to lease or exercise. Subject to the terms of this Amendment, if Landlord validly
exercises its option, Tenant will assign and transfer its interest in Offer Space #2 to Landlord and the Lease will
then terminate with respect to Offer Space #2 only. In order to accomplish this and other matters, for $10.00 and
other good and valuable consideration, the receipt and sufficiency of which is acknowledged, the parties agree
and the Lease is amended as follows as of the date hereof, notwithstanding anything to the contrary:
3.1 Tenant hereby grants to Landlord the right and option to terminate the Lease with respect to Offer Space #2
only. Landlord has no obligation to exercise this option, but if it elects to exercise it will do so by delivering a
written exercise notice to Tenant.
3.2 As of the date that Landlord validly exercises this option, Tenant will be deemed to have assigned, conveyed
and transferred to Landlord all of Tenant's right, title and interest in and to Offer Space #2, and: (a) the Lease will
terminate and expire as to Offer Space #2 only and Tenant and its Affiliates will vacate and surrender possession
of Offer Space #2; (b