Document:

<PAGE>   1
                         * Confidential Treatment Requested
                         Under 17 C.F.R. Sections 200.80(b)(4),
                         200.83 and 230.406

                                                                    EXHIBIT 10.6

                                                          DIGEX Rep. Jamie Shupe

[DIGEX LOGO]

                    BUSINESS CONNECTIVITY SERVICE ORDER FORM

<TABLE>
<CAPTION>

SECTION A - TO BE COMPLETED BY DIGEX                                                 INITIAL      MONTHLY
                                                                                     CHARGE       CHARGE
<S>                                                                                 <C>          <C>
Customer - WEB SIDE STORY
Access Type  LEASED LINE         Post Speed -     45 Mbps     CIR - 45 Mbps            ***           ***
                                                                                    ---------    ----------
Hardware Router - NONE           CSU/DSU-          NONE
                                                                                    ---------    ----------
Firewall
                                                                                    ---------    ----------
  Brand                          Service Level
                                                                                    ---------    ----------
  License                           Platform
                                                                                    ---------    ----------

Other Services-                  Managed Service: [ ] Pager   [ ] UPS
                                                                                    ---------    ----------
Contract Term - 3 year(s)    Total Contract Value-         ***      Total Charges      ***           ***
                                                                                    ---------    ----------

Special Instruction
</TABLE>

SECTION B - TO BE COMPLETED BY CUSTOMER

Company Name     WEBSIDESTORY, INC.
            -------------------------------------------------------------------
Site Address   6450 Lusk Blvd. E204
            -------------------------------------------------------------------
City     San Diego                   State     CA       ZIP     92121
    -------------------------------        ----------      --------------------
SITE PHONE (619) 546-0040    FAX  (619) 546-0480
          ------------------     ----------------
Primary Technical Contact JIM VAN BAALAN
                         ---------------
Phone 619 546 0040   FAX 619 546 0840   Email  Jim@websidestory.com
     --------------     -------------        ------------------------
Secondary Technical Contact   Neil Bartolome
                           ----------------------------------------------------
Phone                                FAX                 Email
     ------------------------------      ---------------      -----------------

Customer Type - Corporate   Existing Customer?        [ ] Yes  [X] No  [ ] N/A
Telco  [X] DIGEX Provided  [ ] Customer Provided      [ ] Extended Demarc
    DIGEX Provides Primary DNS                        [ ] Yes  [X] No  [ ] N/A
    Customer has already registered Domains           [X] Yes  [ ] No  [ ] N/A
    Customer Authorizes DIGEX to transfer Domains     [ ] Yes  [ ] No  [X] N/A
Number of IP Addresses needed   /22
                              -----------------------
Requested Domain Name  1.         N/A                  2.        N/A
                         ----------------------------    ----------------------

Customer hereby orders from DIGEX the Products and Services for the term
specified in this Service Order Form. This Service Order Form is valid when
accepted by an authorized representative of DIGEX and accompanied by an
executed DIGEX Terms and Conditions agreement. Charges do not include any
special construction or inside/extended wiring costs, shipping and handling, or
applicable taxes. Telco rates are estimated based on current Telco carrier
tariffs. All orders subject to credit approval. Customer will be billed
separately by InterNIC for Domain Name registration, and will be charged a
$100.00 one-time DIGEX fee for each additional primary Domain Name. Customer
may be required to provide documentation to justify allocation of IP addresses.

ACCEPTED BY CUSTOMER                            ACCEPTED BY DIGEX

/s/ BLAISE BARRELET
-------------------------------------         ---------------------------------
Customer Signature                            Signature

  BLAISE BARRELET
-------------------------------------         ---------------------------------
Name                    Date                  Name                   Date

PRESIDENT          MAY  29 1998
-------------------------------------         ---------------------------------
Title                                         Title

*** Confidential Portions have been omitted and filed separately with the
    Securities and Exchange Commission.

<PAGE>   2

                           DIGEX TERMS AND CONDITIONS

DIGEX SERVICE: Customer agrees to purchase the DIGEX Products and or Services
outlined in the front page of this Agreement per the terms and conditions
described herewith. Customer agrees to remain as a subscriber of the service for
the period identified from the date of service activation. At the end of the
service commitment this Agreement shall be automatically renewed for successive
one (1) year periods on the same terms and conditions contained herein, with the
exception of the price of services, and shall continue to be automatically
renewed until terminated by either party as provided herein. Notice of
termination should be made in writing to the DIGEX Customer Service Department
at One DIGEX Plaza, Beltsville Maryland 20705 no less than thirty (30) days
prior to the expiration of any term of this Agreement.

RIGHTS AND OBLIGATIONS OF CUSTOMER: DIGEX's services are only to be used for
lawful purposes. Customer shall not transmit, retransmit or store material in
violation of any federal or state laws or regulations, including, but not
limited to, obscenity, indecency, defamation, or infringement of trademark or
copyright. In particular, by signing these terms and conditions, Customer agrees
to adhere to DIGEX's Acceptable Use Policy. Failure to comply with these
obligations shall constitute violation of these terms and conditions and
possible termination of this Agreement at DIGEX's discretion should the
infringement not be rectified to DIGEX's satisfaction. If Customer operates
hardware or software that DIGEX determines may cause hazard, interference, or
service interruption to DIGEX provided equipment or services or the DIGEX
network, Customer shall immediately remove the offending hardware or software
upon notice.

PROPRIETARY RIGHTS: DIGEX grants Customer a non-exclusive, non-transferable
license to use the Products and Services provided hereunder. Title, property
rights, software licenses and hardware licenses and agreements, including all
intellectual property rights to such Products and Services, are and shall remain
with DIGEX, whether or not they are embedded in any Product or Service. Customer
recognizes that the Products and Services used hereunder constitute valuable
trade secrets of DIGEX. Customer will use its best efforts to protect and keep
confidential any and all Products and Services used by it and shall not attempt
in any way to copy, examine, alter, re-engineer, tamper with, or otherwise
misuse such Products and Services. In all cases the IP addresses assigned for
Customer use remain the property of DIGEX and shall revert back to same upon
Customer termination.

INSTALLATION: Installation and one-time charges set forth on the service order
are due upon order. Installation charges are nonrefundable. Customer shall
provide all necessary preparations to permit installation, maintenance and
operation of Products and Services provided hereunder unless otherwise specified
in this Agreement and shall provide to DIGEX and its suppliers reasonable access
to Customer's premises including the point at which leased telco services are
provided to Customer. Customer is also responsible for any and all additional
telco charges arising as a result of necessity to reschedule telco suppliers, as
well as all telco maintenance and diagnostics charges that may be needed. Once
DIGEX services have been installed, Customer shall be ' responsible for any fees
associated with relocation of services if requested by Customer, including a one
time DIGEX installation fee, and corresponding adjusted recurring telco fees
dependent on the geographical relocation. If at any time during this contract
the Customer wishes to downgrade bandwidth, the Customer agrees to pay a
one-time downgrade fee of $750 and any applicable telco fees.

CUSTOMER PREMISE EQUIPMENT: Customer is responsible for all maintenance and
upgrades of equipment purchased from DIGEX beyond the manufacturer's standard
warranty on said equipment. Any unused hardware or software purchased from DIGEX
may be returned for full refund, less a 20% restocking fee, within 60 days of
purchase provided such items are unused, in original packaging and in full
working order. In the event that DIGEX provides equipment to Customer in
conjunction with Service wherein such equipment remains the property of DIGEX;
(i) the configuration and type of equipment to be used shall be determined
solely by DIGEX, (ii) DIGEX shall provide the initial equipment configuration
and verify operability with the DIGEX network,

<PAGE>   3

                           DIGEX TERMS AND CONDITIONS

(iii) Customer is responsible for operating the equipment within the parameters
of the manufacturer's specifications, and (iv) DIGEX may choose at its sole
discretion to provide software upgrades for hardware. Additional support of
DIGEX staff to reconfigure equipment once installed, should service be required
due to Customer intervention, shall be chargeable to Customer at DIGEX's
then-current support rates.

SERVICE OF EQUIPMENT PROVIDED BY DIGEX: In the event of failure of DIGEX owned
equipment provided to Customer in conjunction with Service, like equipment shall
be provided by DIGEX as promptly as reasonably possible, via next business day
delivery to Customer site. Equipment shall be pre-configured by DIGEX in
conjunction with configuration guidelines. Once operability is verified,
Customer shall return the faulty equipment to DIGEX with 15 days of receipt of
new equipment. Failure to do so shall result in the Customer being billed for
the faulty equipment in the amount equaling vendor's list price as determined by
DIGEX. At termination of the Agreement, all DIGEX owned equipment must be
returned in good working order within 30 days. Failure to do so shall result in
liability to the Customer for the cost of repair of the faulty equipment or the
cost of replacement of the non-returned equipment in an amount equaling vendor's
list price as determined by DIGEX.

INVOICING AND PAYMENT OF SERVICE: Initial rates for the services are set forth
on the DIGEX Order Form. The initial rates shall be in effect for the duration
of the initial service commitment. During any renewal terms, the rates shall be
those contained in the then current DIGEX price list unless otherwise agreed by
the parties. DIGEX will invoice Customer monthly in advance. The price of the
service described within does not include sales, usage, excise, ad valorem,
property or any other taxes now or hereafter imposed, directly or indirectly, by
any governmental authority or agency with respect to the Service. Customer
agrees to pay such taxes directly or reimburse DIGEX for any such taxes. This
bill is due and payable in full on the date shown on the bill. Customers also
have the option of prepayment of services for term of Agreement. For Customers
receiving DIGEX burstable services, charges are billed one month in arrears,
based upon actual usage.

NON-PAYMENT / CUSTOMER TERMINATION: A late charge of the lesser of 1-1/2% per
month or the maximum rate permitted by law may be applied to each of Customer's
service bills not paid by the due date. This late charge is applicable to the
unpaid balance as of the due date. Customer shall pay DIGEX all costs including,
without limitation, reasonable attorney fees, the fees of any collection agency,
and any other costs incurred by DIGEX in exercising any of its rights under the
Agreement. If Customer terminates the Agreement, Customer will pay a lump sum
equal to the charges for the remainder of the then current term of the Agreement
but, except as described in the next sentence, in no case greater than one year.
If the Customer is terminated by DIGEX for violation of the Acceptable Use
Policy, Customer shall pay immediately a lump sum equal to the charges for the
remainder of the then current term of the Agreement.

MAINTENANCE WINDOW: DIGEX maintains specified time periods during which it may
perform necessary network maintenance and/or network upgrades. These specified
time periods are referred to as "Scheduled Maintenance Windows". In the event
DIGEX plans to bring down the Service or the Equipment during a Scheduled
Maintenance Window, DIGEX will provide a 24-hour notice to Customer in advance
of the Scheduled Maintenance Window. In addition, DIGEX reserves the right to
perform any required maintenance work outside of the Scheduled Maintenance
Window with a minimum of 12 hours notification to Customer. However, Customer
understands that at any time DIGEX may perform emergency maintenance as needed
to preserve the overall integrity of the products and services offered as
determined by DIGEX with no notice.

DIGEX SERVICE LEVEL GUARANTEE: If the Customer notifies DIGEX in writing
immediately upon failure to access DIGEX's Services and or Equipment and DIGEX
determines in its reasonable commercial judgment that the outage has been caused
by DIGEX, the Customer will receive a credit against its next monthly invoice.
In the event of a service interruption that exceeds one hour in

<PAGE>   4

                           DIGEX TERMS AND CONDITIONS

any calendar day, DIGEX will grant a credit allowance for that entire day of
service, equivalent to 1/30th of the monthly port and telco service charge, for
the service affected. In the event of service interruptions of, in the
aggregate, two to eight hours in any calendar month, DIGEX will credit
Customer's account for a week of service. In the event of service interruptions
of, in the aggregate, eight hours to two days in any calendar month, DIGEX will
credit Customer's account for two weeks of service. In the event of service
interruptions of, in the aggregate, two days to four days in any calendar month,
DIGEX will credit Customer's account for three weeks of service. In the event of
service interruptions of, in the aggregate, more than four days in any calendar
month, DIGEX will credit Customer's account for the entire month of service. If
Customer has the right, pursuant to this clause to credits equal to or greater
than one week of service in two consecutive calendar months, Customer may
terminate this agreement, without penalty, on written notice to DIGEX. A service
interruption will be deemed to have occurred if Customer is unable to
communicate with or access any other Internet Service Provider via the IP
Transmission Protocol and as a result of failure of DIGEX's facility, equipment
or personnel used to provide the service in question, and only where the
interruption is not the result of a Scheduled Maintenance Window.

CREDIT INFORMATION: Customer consents to standard credit check by DIGEX in order
to confirm credit-worthiness and to DIGEX's disclosure of account information to
or from credit reporting agencies, credit bureaus, private credit reporting
associations, or to or from other providers of telecommunications services at
any time during Customer's service with DIGEX.

LIMITATION OF LIABILITY: DIGEX exercises no control whatsoever over the content
of any information passing through its network and is not responsible for
damages Customer suffers for any reason, including, but not limited to, loss or
degradation of data resulting from delays, nondeliveries, wrong deliveries and
any and all service interruptions whether caused by the acts and omissions of
DIGEX and its employees, of Customer or of any other party. DIGEX makes no
representation that it can provide uninterrupted service. Furthermore, DIGEX
shall have no liabilities other than the credits outlined within due to
interrupted service unless caused by the gross negligence of DIGEX. DIGEX shall
not be liable for acts or omissions of other carriers, equipment failures or
modifications, acts of God, strikes, government actions, or other causes beyond
its reasonable control. DIGEX MAKES NO WARRANTIES WITH RESPECT TO THE PRODUCTS
OR SERVICES OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT AS SPECIFICALLY
PROVIDED IN THIS AGREEMENT. THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR ANY PARTICULAR PURPOSE ARE HEREBY DISCLAIMED AND EXCLUDED. DIGEX
SHALL NOT BE LIABLE TO ITS CUSTOMER OR ANY THIRD PARTY FOR ANY SPECIAL,
PUNITIVE, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. Any legal action arising out of
the provision of DIGEX's services shall be brought within a period of one year
of the occurrence or shall be deemed waived. Customer agrees to indemnify and
hold harmless DIGEX from any and all claims resulting from Customer's use of the
equipment or services which cause damage to Customer or any other party.

TRANSFER AND ASSIGNMENT: Neither party, other than for collateral purposes, may
sell, assign or transfer this Agreement without the prior written consent of the
other party, except that DIGEX may assign this Agreement to any of its
affiliates or any person who acquires substantially all of the assets of DIGEX.
Customer may not resell IP accounts or Internet services of any kind from a
DIGEX provided connection without explicit written permission of DIGEX.

GOVERNING LAW: This Agreement is governed by the laws of the State of Maryland
without regard to its choice of law provisions.

ACCEPTANCE: These Terms and Conditions of the "Agreement" together supersede all
previous representations, understandings or agreements and shall prevail
notwithstanding any variance with terms and conditions of any order submitted.

----------------------------------------               -------------------------
Customer                    Date

----------------------------------------
Print Customer Name

----------------------------------------               -------------------------
DIGEX                      Date
<PAGE>   5
                           DIGEX TERMS AND CONDITIONS

DIGEX SERVICE: Customer agrees to purchase the DIGEX Products and/or Services
outlined in the front page of this Agreement per the terms and conditions
described herewith. Customer agrees to remain as a subscriber of the service
for the period identified from the date of service activation. At the end of
the service commitment this Agreement shall be automatically renewed for
successive one (1) year periods on the same terms and conditions herein, with
the exception of the price of services, and shall continue to be automatically
renewed until terminated by either party as provided herein. Notice of
termination should be made in writing to the DIGEX Customer Service Department
at One DIGEX Plaza, Beltsville, Maryland 20705 no less than thirty (30) days
prior to the expiration of any term of this Agreement.

RIGHTS AND OBLIGATIONS OF CUSTOMER: DIGEX's services are only to be used for
lawful purposes. Customer shall not transmit, retransmit or store material in
violation of any federal or state laws or regulations, including, but not
limited to, obscenity, indecency, defamation, or infringement of trademark or
copyright, in particular, by signing these terms and conditions. Customer
agrees to adhere to DIGEX's Acceptable Use Policy. Failure to comply with these
obligations shall constitute violation of these terms and conditions and
possible termination of this Agreement at DIGEX's discretion should the
infringement not be rectified to DIGEX's satisfaction. If Customer operates
hardware or software that DIGEX determines may cause hazard, interference, or
service interruption to DIGEX provided equipment or services or the DIGEX
network, Customer shall immediately remove the offending hardware or software
upon notice.

PROPRIETARY RIGHTS: DIGEX grants Customer a non-exclusive, non-transferable
license to use the Products and Services provided hereunder. Title, property
rights, software licenses and hardware licenses and agreements, including all
intellectual property rights to such Products and Services, are and shall
remain with DIGEX, whether or not they are embedded in any Product or Service.
Customer recognizes that the Products and Services used hereunder constitute
valuable trade secrets of DIGEX. Customer will use its best efforts to protect
and keep confidential any and all Products and Services used by it and shall
not attempt in any way to copy, examine, alter, re-engineer, tamper with, or
otherwise misuse such Products and Services. In all cases the IP addresses
assigned for Customer use remain the property of DIGEX and shall revert back to
same upon Customer termination.

INSTALLATION: Installation and one-time charges set forth on the service order
are due upon order. Installation charges are nonrefundable. Customer shall
provide all necessary preparations to permit installation, maintenance and
operation of Products and Services provided hereunder unless otherwise
specified in this Agreement and shall provide to DIGEX and its suppliers
reasonable access to Customer's premises including the point at which leased
telco services are provided to Customer. Customer is also responsible for any
and all additional telco charges arising as a result of necessity to reschedule
telco suppliers, as well as all telco maintenance and diagnostics charges that
may be needed. Once DIGEX services have been installed, Customer shall be
responsible for any fees associated with relocation of services if requested by
Customer, including a one time DIGEX installation fee, and corresponding
adjusted recurring telco fees dependent on the geographical relocation. If at
any time during this contract the Customer wishes to downgrade bandwidth, the
Customer agrees to pay a one-time downgrade fee of $750 and any applicable
telco fees.

CUSTOMER PREMISE EQUIPMENT - Purchased by Customer: Customer is responsible
for all maintenance and upgrades of equipment purchased from DIGEX
(manufacturer's warranty may apply in some circumstances). Any unused hardware
or software purchased from DIGEX may be returned for a full refund, less a 20%
restocking fee, within 15 days of receipt by Customer, provided such items are
unopened, in original packaging, and in full working order, except that if
Customer purchases equipment with a custom configuration, as detailed in an
attachment hereto, it is not returnable by Customer.

CUSTOMER PREMISE EQUIPMENT - Provided by DIGEX: In the event that DIGEX
provides DIGEX-owned equipment to Customer in conjunction with service, (i) the
configuration and type of equipment to be used shall be determined solely by
DIGEX (except that DIGEX may agree to obtain a custom equipment configuration
specifically for Customer as detailed in a separate attachment); (ii) DIGEX
shall provide the initial equipment configuration and verify operability with
the DIGEX network; (iii) Customer is responsible for operating the equipment
within the parameters of the manufacturer's specifications; and (iv) DIGEX may
choose at its sole discretion to provide software upgrades for hardware.
Additional support of DIGEX staff to reconfigure equipment once installed,
should service be required due to Customer's action, shall be chargeable to
Customer at DIGEX's then-current support rates. In the event of failure of
DIGEX-owned equipment provided to Customer in conjunction with service, like
equipment shall be provided by DIGEX as promptly as reasonably possible via next
business day delivery to Customer site. In the case of equipment with a
customer configuration, as detailed in an Attachment hereto, DIGEX may agree to
a shorter replacement period. DIGEX shall pre-configure equipment in
conjunction with configuration guidelines. Once operability is verified,
Customer shall return any faulty equipment to DIGEX within 15 days of receipt
of new equipment. Failure to do so shall result in the Customer being billed
for the faulty equipment in the amount equal to vendors list price as
determined by DIGEX. At termination of the Agreement, all DIGEX-owned equipment
must be returned in good working order within 30 days. Failure to do so shall
result in liability to the Customer for the cost of replacement of the
non-returned equipment in the amount equal to vendors list price as determined
by DIGEX.

INVOICING AND PAYMENT OF SERVICE: Initial rates for the services are set forth
on the DIGEX Order Form. The initial rates shall be in effect for the duration
of the initial service commitment. During any renewal terms, the rates shall be
those contained in the then current DIGEX price list unless otherwise agreed by
the parties. DIGEX will invoice Customer for services in advance on a monthly
basis. Except that, for those Customers receiving DIGEX burstable services,
charges for burstable services above and beyond the base tier rate are billed
one month in arrears because such charges are based upon actual usage. The
price of the service described within does not include sales, usage, excise,
ad valorem, property or any other taxes now or hereafter imposed, directly or
indirectly, by any governmental authority or agency with respect to the
Service. Customer agrees to pay such taxes directly or reimburse DIGEX for
any such taxes. This bill is due and payable in full on the date shown on the
bill. Customers also have the option of prepayment of services for term of
Agreement. Customer shall be responsible and will reimburse Company for
telephone company or other service provider installation or any other charges,
including monthly service charges, incurred by Company in the fulfillment of
this Agreement if: (i) the Agreement is terminated after execution but prior to
initiation of the Products and Services; or (ii) there is a delay in the
initiation of the Products and Services that is caused, through action or
inaction, by the Customer.

NON-PAYMENT/CUSTOMER TERMINATION: A late charge of the lesser of 1-1/2% per
month of the maximum rate permitted by law may be applied to each of Customer's
service bills not paid by the due date. This late charge is applicable to the
unpaid balance as of the due date. Customer shall pay DIGEX all costs
including, without limitation, reasonable attorney fees, the fees of any
collection agency, and any other costs incurred by DIGEX in exercising any of
its rights under the Agreement. If Customer terminates the Agreement Customer
will pay a lump sum equal to the charges for the remainder of the then current
term of the Agreement but, except as described in the next sentence, in no case
greater than one year. If the Customer is terminated by DIGEX for violation of
the Acceptable Use Policy, Customer shall pay immediately a lump sum equal to
the charges for the remainder of the then current term of the Agreement.

MAINTENANCE WINDOW: DIGEX maintains specified time periods during which it may
perform necessary network maintenance and/or network upgrades. These specified
time periods are referred to as "Schedule Maintenance Windows". In the event
DIGEX plans to bring down the Service or the Equipment during a Scheduled
Maintenance Window, DIGEX will provide a 24-hour notice to Customer in advance
of the Scheduled Maintenance Window. In addition, DIGEX reserves the right to
perform any required maintenance work outside of the Scheduled Maintenance
Window with a minimum of 12 hours notification to Customer. However, Customer
understands that at any time DIGEX may perform emergency maintenance as needed
to preserve the overall integrity of the products and services offered as
determined by DIGEX with no notice.

DIGEX SERVICE LEVEL GUARANTEE; If the Customer notifies DIGEX in writing
immediately upon failure to access DIGEX's Services and or Equipment and DIGEX
determines in its reasonable commercial judgment that the outage has been caused
by DIGEX, the Customer will receive a credit against its next monthly invoice.
In the event of a service interruption that exceeds one hour in any calendar
day, DIGEX will grant a credit allowance for that entire day of service,
equivalent to 1/30th of the monthly port and telco service charge, for the
service affected. A service interruption will be deemed to have occurred if
Customer is unable to communicate with or access any other Internet Service
Provider via the IP Transmission Protocol and as a result of failure of DIGEX's
facility, equipment or personnel used to provide the service in question, and
only where the interruption is not the result of a Scheduled Maintenance Window.

CREDIT INFORMATION: Customer consents to standard credit check by DIGEX in
order to confirm credit-worthiness and to DIGEX's disclosure of account
information to or from credit reporting agencies, credit bureaus, private
credit reporting associations, or to or from other providers of
telecommunications services at any time during Customer's service with DIGEX.

LIMITATION OF LIABILITY: DIGEX exercises no control whatsoever over the content
of any information passing through its network and is not responsible for
damages Customer suffers for any reason, including, but not limited to, loss or
degradation of data resulting from delays, non-deliveries, wrong deliveries and
any and all service interruptions whether caused by the acts and omissions of
DIGEX and its employees, of Customer or of any other party. DIGEX makes no
representation that it can provide uninterrupted service. Furthermore, DIGEX
shall have no liabilities other than the credits outlined within due to
interrupted service unless caused by the gross negligence of DIGEX. DIGEX shall
not be liable for acts or omissions of other carriers, equipment failures or
modifications, acts of God, strikes, government actions, or other causes beyond
its reasonable control. DIGEX makes no warranties with respect to the products
or services of any kind whatsoever, express or implied, except as specifically
provided in this agreement. The implied warranties of merchantability and
fitness for any particular purpose are hereby disclaimed and excluded. DIGEX
shall not be liable to its customer or any third party for any special,
punitive, incidental, or consequential damages. Any legal action arising out of
the provision of DIGEX's services shall be brought within a period of one year
of the occurrence or shall be deemed waived. Customer agrees to indemnify and
hold harmless DIGEX from any and all claims resulting from Customer's use of
the equipment or services which cause damage to Customer or any other party.

TRANSFER AND ASSIGNMENT: Neither party, other than for collateral purposes, may
sell, assign or transfer this Agreement without the prior written consent of
the other party, except that DIGEX may assign this Agreement to any of its
affiliates or any person who acquires substantially all of the assets of DIGEX.
Customer may not resell IP accounts or Internet services of any kind from a
DIGEX provided connection without explicit written permission of DIGEX.

GOVERNING LAW: This Agreement is governed by the laws of the State of MD
without regard to its choice of law provisions. ACCEPTANCE: These Terms and
Conditions of the "Agreement" together supersede all previous representations,
understandings or agreements and shall prevail notwithstanding any variance
with terms and conditions of any order submitted.

WEBSIDESTORY                                  May 29, 1998
-------------------------                 --------------------
Customer                                         Date

/s/ BLAISE BARRELETT
-------------------------
Print Customer Name

-------------------------                 --------------------
DIGEX                                            Date

<PAGE>   6
[DIGEX LOGO]

                               CONTRACT ADDENDUM

NON-PAYMENT/ CUSTOMER TERMINATION

Paragraph 8 the 4th sentence should be stricken and replaced to read as
follows:

"If the Customer is terminated by DIGEX for persisting in violation of the
Acceptable Use Policy (after Customer receives notice and a 30-day period to
cure or desist in any such violation), then the Customer will pay (in lieu of
any charges for the remainder of the then current term of the Agreement)
liquidated damages. Liquidated damages will be equal to $150,000 minus the
product of $150,000 and a fraction, the numerator of which is the number of
whole months in the current term of the Agreement already paid for by Customer
and the denominator of which is the total number of months constituting the
current term of the Agreement."

DIGEX SERVICE LEVEL GUARANTEE

Paragraph 10 the 3rd sentence should read as follows:

In the event of a service interruption that exceeds one hour in any calendar
day, DIGEX will grant a credit allowance for that entire day of service,
equivalent to 1/30th of the monthly port and telco monthly service charge or if
the customer experiences eight hours of contiguous service interruption DIGEX
will credit 3 days of monthly port and telco service charges.

AGREED TO BY:

Customer Signature /s/ BLAISE BARRELET    Title: President    Date: May 28, 1998
                  ---------------------
                   Blaise Barrelet

DIGEX ACCEPTANCE:

DIGEX Signature__________ Title:_________ Date____________
<PAGE>   7
[DIGEX LOGO]

                                                                    May 29, 1998

SERVICE LEVEL GUARANTEE:

     For Purposes of this agreement, any of the following shall constitute a
breach of Agreement by DIGEX unless the result of matters beyond DIGEX's
control: (i) failure of the service to remain fully operational to its end-users
for at least 99.98% of the total number of hours in any month, or (ii) the
failure to remain fully operational to its end users for a period of more than
one hour and forty five minutes, contiguous or noncontiguous, during any
consecutive 30 day period. If a failure should occur as a result of matters
beyond DIGEX's control, DIGEX shall use its best reasonable efforts to
investigate the cause and to remedy such failure as soon as possible.

                              DIGEX

                              By:
                                 -------------------------

                              WEB SIDE STORY

                              By: /s/ BLAISE BARRELET
                                 -------------------------
                                   Blaise Barrelet, President<PAGE>   1
                    * Confidential Treatment Requested
                      Under 17 C.F.R. Section 200.80(b)(4),
                      200.83 and 230.406

                                                                    EXHIBIT 10.7

                                COVER AGREEMENT

                                       FOR

                   SPRINT COMMUNICATIONS PRODUCTS AND SERVICES

This Cover Agreement for Sprint Communications Products and Services
("Agreement") by and between SPRINT COMMUNICATIONS COMPANY L.P. ("Sprint") and
WEB SIDE STORY ("Customer") establishes certain special prices and related terms
and conditions governing Sprint's provision of Domestic Sprint IP products and
services ("Products and Services") to Customer.

Sprint is a telecommunications common carrier providing intrastate, interstate
and international services to customers: (1) on a non-tariff basis; and, (2)
pursuant to tariffs on file with the Federal Communications Commission (F.C.C.),
various state regulatory commissions or in-country international
telecommunications bodies (collectively referred to as "Tariffs"), as
applicable, and as amended from time to time by Sprint.

1.   TERM

     The term ("Term") of this Agreement is 36 months and begins on the first
     day of the first complete billing month following execution of this
     Agreement by both parties ("Commencement Date"). When this Agreement
     expires or terminates, Sprint will provide the Products and Services to
     Customer at Sprint's then current Tariff or public price list.

2.   SPECIAL PRICES FOR PRODUCTS AND SERVICES

Subject to the terms and conditions in this Agreement, Customer will receive the
rates, charges and discounts ("Special Prices") in Attachment A (attached and
incorporated into this Agreement) on its purchase of the Products and Services
during the Term. Rates, charges and discounts for Sprint products and services
not in this Agreement will be provided under the applicable Tariffs or public
price list.

3.   OTHER TERMS AND CONDITIONS

     3.1   Orders and Other Documents. Customer will order the Products and
           Services by executing Sprint's standard Order for Data Communication
           Services form and other order forms designated by Sprint ("Orders"),
           subject to Sprint's acceptance of the Orders. The minimum Order term
           for the Products and Services is 3 years. The Sprint Tariffs, if
           applicable, and Sprint's IP Products and Services Terms and
           Conditions (attached and incorporated into this Agreement as
           Attachment B) apply to Sprint's provision of Products and Services.
           If there is a conflict between this Agreement and the documents
           referenced in this Agreement, the order of precedence is: (1) Sprint
           Tariffs, if applicable (2) the terms and conditions in this Agreement
           (including the Attachments), (3) Sprint's IP Products and Services
           Terms and Conditions and (4) the Orders.

     3.2   Performance Guarantees. The performance guarantees for Sprint's IP
           Products and Services are defined in Attachment D (Availability) and
           Attachment E (Delay) (attached and incorporated into this Agreement).

     3.3   Material Failure. Customer agrees to provide prompt written notice to
           Sprint of any material failure by Sprint to provide Products and
           Services as set forth in this Agreement. If Sprint fails to cure the
           material failure within a reasonable time, Customer may terminate the
           affected Products and Services on 30 days' written notice to Sprint.
           A material failure by Sprint will not include a failure caused by the
           local

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                                                      Agreement No. BSG9811-261

           exchange carrier, Customer Premise Equipment, Customer or any other
           failure caused by circumstances outside the sole control of Sprint.

     3.4   Governmental Programs. Sprint may adjust its rates and charges or
           impose additional rates and charges on Customer in order to recover
           amounts that Sprint is required by governmental or quasi-governmental
           authorities to collect on behalf of or pay to others in support of
           statutory or regulatory programs. Examples of such programs include,
           but are not limited to, the Universal Service Fund, the Presubscribed
           Interexchange Carrier Charge, and compensation to payphone service
           providers for use of their payphones to access Sprint's service.

     3.5   Nondisclosure-Agreement. This Agreement and any information
           concerning its terms, conditions or Special Prices are confidential
           and proprietary information of Sprint and are governed by the
           Agreement for Use and Nondisclosure of Confidential Information,
           effective DECEMBER 7, 1998, and continuing in effect for the Term.

     3.6   Notices. All notices or other communication arising out of disputes
           under this Agreement must be in writing and delivered to the
           addresses shown below the parties' signatures at the end of this
           Agreement.

4.   ENTIRE AGREEMENT

     This Agreement (including all referenced documents and Attachments) is the
     entire understanding between Sprint and Customer relating to this
     Agreement, and supersedes all proposals, agreements, understandings,
     negotiations, discussions, whether oral or written, or other communication
     between the parties relating to this Agreement. Customer is not relying
     upon any representations or promises made by or on behalf of Sprint in
     entering into this Agreement. All modifications, interlineations,
     additions, supplements or other changes to this Agreement must be accepted
     by both parties in writing.

To become effective, this Agreement must be signed by an authorized officer of
Customer, delivered to Sprint on or before FEBRUARY 17, 1999, and then executed
by an officer of Sprint.

WEB SIDE STORY                             SPRINT COMMUNICATIONS COMPANY L.P.

By:                                        By:

/s/ BLAISE BARRELET         2/25/99        /s/ GARY NG                 2/2/99
--------------------------------------     ------------------------------------
Signature and Date                         Signature and Date

BLAISE BARRELET, PRESIDENT                  GARY NG, BRANCH MANAGER
--------------------------------------     ------------------------------------
Name and Title (Typed or Printed)          Name and Title (Typed or Printed)

ADDRESS FOR NOTICE                         ADDRESS FOR NOTICE
6450 Lusk Boulevard, Suite E204            2002 Edmund Halley Drive
San Diego, CA 92121                        Reston, Virginia 20191
                                           Attention: Reston Contracts Group
                                           (Mail Stop: VARESC0105)

                                           With a copy to:

                                           Sprint Communications
                                           8140 Ward Parkway
                                           Kansas City, Missouri 64114
                                           Attention Law Department/Marketing
                                             and Sales

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<PAGE>   3

                                                       Agreement No. BSG9811-261

                                  ATTACHMENT A

         PRICING COMPONENTS FOR DOMESTIC SPRINT IP PRODUCTS AND SERVICES

A.   DESCRIPTION OF DOMESTIC SPRINT IP CHARGES

     Domestic Sprint IP Products and Services consist of both Internet (public)
     and Intranet (corporate LAN) network access to allow remote users to
     dial-up (via local or toll-free access) for access to hosts or other
     resources available on such networks. The term "Domestic" is defined as the
     48 contiguous United States and the District of Columbia. The following are
     the primary price components of Domestic Sprint IP Dedicated Products and
     Services:

     1.   Dial Access Charges - There is a one-time fixed charge per remote user
          for set-up of the user ID and a usage charge per remote user per hour
          for either local or toll free dial access. The hourly rates generally
          cover access at any time from any available city. Dial access usage
          charges do not include local telephone message and toll charges.

     2.   Dedicated IP Port Charges - There are one-time installation charges
          and a monthly recurring charges per Dedicated IP Port for: (a) local
          access facilities (per Tariff 8), (b) the Port and (c) Customer
          Premise Equipment (CPE) required for each Dedicated IP Port.

     3.   Frame Relay Gateway Charges - For Frame Relay Gateways to the Internet
          or Intranet, there is a one-time charge and a monthly charge for each
          Burst Express PVC.

     4.   User ID Charges - There is a one-time charge and a monthly charge per
          user ID for assignment and administration of the customer-managed or
          Sprint-managed user IDs (Fixed Address or Dynamic Address).

     5.   Customer Premise Equipment - Certain Customer Premise Equipment
          ("CPE") may be used with Sprint's IP Products and Services. Customer
          may purchase or rent such CPE from Sprint pursuant to the Sprint CPE
          Order form. Customer provided CPE must be certified by Sprint. There
          is a one time installation charge for CPE installed by Sprint, and a
          monthly recurring charge for CPE rented from Sprint.

     6.   Internet Service Providers (ISPs) - If Customer is or becomes an ISP
          the terms and conditions of the Addendum to Sprint IP Products and
          Services will apply (attached and incorporated into this Agreement as
          Attachment C. Customer will be considered an ISP if Sprint determines,
          at its sole discretion, that Customer is in the business of reselling
          (directly or indirectly) Internet access or web hosting services.

B.   DOMESTIC SPRINT IP PRODUCTS AND SERVICES SPECIAL PRICES AND TERMS

     Customer will receive the following Special Prices for Domestic Sprint IP
     Products and Services:

     1.   Customer will be charged a *** fixed monthly recurring charge for
          each Domestic DS3 Sprint IP Dedicated Port with an individual Order
          term of 3 years or longer installed or in service during the Term.

     2.   Sprint will waive *** of the Domestic DS3 Sprint IP Dedicated Port
          installation (non-recurring) charges on Ports installed with an
          individual Order term of three years during the

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*** Confidential Portions have been omitted and filed separately with the
    Securities and Exchange Commission.
<PAGE>   4
                                                      Agreement No. BSG9811-261

     Term. Ports receiving an Installation waiver are subject to a 36 month
     continuous use requirement. If Customer disconnects any Port receiving an
     installation waiver before the end of the required minimum continuous use
     period, Customer must pay Sprint a prorated portion of the waived
     installation charges based on the number of months remaining in the period.

3.   Sprint will issue Customer a *** credit in the first billing month
     following the Commencement Date, a *** credit in the eighteenth billing
     month following the Commencement Date and a *** credit in the
     thirty-sixth billing month following the Commencement Date.

4.   If Sprint terminates this Agreement due to Customer's breach or Customer
     terminates this Agreement or ceases to use Products and Services for any
     reason whatsoever prior to the expiration of the Term, Customer must pay to
     Sprint, in addition to all other charges, a pro-rata portion of all credits
     and waivers issued based upon the number of months remaining in the Term,
     and, as a result of such termination, no further credits and waivers will
     be issued.

5.   Orders for Domestic Sprint IP Ports will be accepted at Sprint's sole
     discretion.

6.   The monthly recurring and installation charges set forth in this subsection
     B do not include charges for Local Access Facilities, installation or CPE.
     Charges for Local Access Facilities are set forth in Sprint F.C.C. Tariff
     No. 8.

7.   Customer is not eligible to receive any other promotions, incentives,
     discounts, waivers or credits applicable to Domestic Sprint IP Dedicated
     Products and Services except as expressly set forth in the Agreement.

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*** Confidential Portions have been omitted and filed separately with the
    Securities and Exchange Commission.
<PAGE>   5
                                                      Agreement No. BSG9811-261

                                  ATTACHMENT B

                         SPRINT IP PRODUCTS AND SERVICES
                              TERMS AND CONDITIONS

The following terms and conditions govern Sprint's provision of Sprint IP
products and services ("Products and Services") to Customer as specified in the
Order for Data Communication Services form ("Order"). Products and Services
includes equipment, facilities, software or services provided by Sprint, but
does not include certain third party access lines which may be utilized with the
Products and Services. If Products and Services are or become subject to a
tariff filed with the Federal Communications Commission or any other regulatory
institution ("Tariff"), the terms and conditions of such Tariff, including
rates, will govern Customer's use of the Products and Services.

1.   TERM

     The initial term for the Products and Services ("Initial Term") will be
     stated on the Order and will begin on the first day of the month following
     the date the Products and Services are installed and available. Upon
     expiration, the Initial Term will be automatically extended for successive
     one (1) year periods, unless sixty (60) days prior to the end of the
     Initial Term or each such extension, either (a) Customer or Sprint provides
     written notice to the other that it does not want such extension, or (b)
     Customer executes a new Order for Products and Services with a term longer
     than one (1) year.

2. PRICES

     A.  Prices are stated on the Order. Prices (except those subject to Tariff
         or Sprint's Rate Escalation Policy) and discount percentages (if
         applicable) are fixed for the Initial Term. Thereafter, Sprint will
         provide Customer with written notice of increased prices or reduced
         discounts, sixty (60) days prior to the effective date of such changes.
         In the event of such changes, Customer may terminate the Order without
         termination liability by providing written notice to Sprint no later
         than thirty (30) days prior to the effective date of such changes,
         otherwise Customer will be billed according to the new prices and/or
         discounts beginning on the effective date of such changes.

     B.  Notwithstanding anything contained herein, Sprint may adjust its rates
         and charges or impose additional rates and charges on Customer in order
         to recover amounts it is required by governmental or quasi-governmental
         authorities to collect on behalf of or pay to others in support of
         statutory or regulatory programs. Examples of such programs include,
         but are not limited to, the Universal Service Fund, the Presubscribed
         Interexchange Carrier Charge, and compensation to payphone service
         providers for use of their payphones to access Sprint's service.

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                                                      Agreement No. BSG9811-261

3.   INVOICES AND PAYMENT

     The date the Products and Services are installed and available, or the
     delivery date specified in the Order, whichever is later, will be the date
     on which: (a) all non-recurring charges will be invoiced in full, and (b)
     invoicing for all recurring charges will commence. Fixed recurring charges
     for partial months will be prorated on a thirty (30) day basis. Payment in
     U.S. currency will be due upon receipt of the invoice. Interest charges of
     one and three-quarter percent (1-3/4%) per month or the highest rate
     permitted by law, whichever is less, will accrue daily on all amounts not
     paid within thirty (30) days of the date of the invoice. Customer will pay
     all sales and use taxes, as well as duties or levies, on Products and
     Services.

4.   DELIVERY

     Sprint will schedule the delivery of the Products and Services in
     accordance with the mutually agreed delivery date specified in the Order.
     Sprint will accommodate one Customer requested delay in the delivery date,
     provided that: (a) such delay does not exceed thirty (30) calendar days
     from the delivery date in the Order, (b) Sprint receives such Customer
     requested delay in writing no later than ten (10) days prior to the
     original delivery date, and (c) Customer agrees to pay any additional
     charges resulting from such delay. If Customer delays delivery of the
     Products and Services for more than thirty (30) calendar days beyond the
     delivery date specified in the Order, then Sprint will invoice Customer for
     all applicable charges for Products and Services effective thirty (30)
     calendar days from the original agreed delivery date unless Sprint receives
     Customer's written notice to cancel the affected Products and Services on
     or before the date which is thirty (30) calendar days from the original
     delivery date, subject to Sprint's standard cancellation charges.

5.   RESPONSIBILITIES OF SPRINT

     A.   Sprint will provide, install, operate and maintain the Products and
          Services as required in the Order. Sprint will not be responsible for
          cabling that connects equipment not provided by Sprint to the Products
          and Services.

     B.   Sprint warrants that Products and Services will be in good working
          order and will in all material respects conform to the requirements of
          the Order upon the date installed. Customer's sole remedy for
          performance or non-performance of Products and Services in accordance
          with the terms of the Order will be repair or replacement of the
          Products and Services. THE FOREGOING WARRANTIES ARE IN LIEU OF ALL
          OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
          IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
          PURPOSE.

     C.   The performance guarantees for Sprint's IP Products and Services are
          as defined in Exhibit 1 (Availability) and 2 (Delay) (attached and
          incorporated into this Agreement).

6.   RESPONSIBILITIES OF CUSTOMER

     A.   Customer will: (i) at its own expense provide all necessary
          preparations required to comply with Sprint's installation and
          maintenance specifications, (ii) be responsible for the costs of
          relocation

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                                                       AGREEMENT NO. BSG9811-261

          of Products and Services once installed, and (iii) provide to Sprint
          and to its suppliers reasonable access to Customer's premises to
          perform any acts required by the Order.

     B.   Customer will properly use the Products and Services. Customer will be
          liable for any and all damages to Products and Services located on
          Customer's premises excluding reasonable wear and tear, and damages
          caused by Sprint. Upon expiration or termination of the Order,
          Customer will surrender to Sprint any equipment and other property
          owned by Sprint and provided to Customer.

     C.   Customer will not nor will it permit or assist others to: (i) use
          Products and Services for any purpose other than that for which they
          are intended, (ii) fail to maintain a suitable environment in
          accordance with the manufacturer's specifications, or (iii) alter,
          tamper with, adjust or repair the Products and Services. Upon the
          occurrence of any of the above, Sprint will be completely released
          from any liability or obligation (including any warranty or indemnity
          obligation) to Customer relative to the Products and Services; and
          Customer will be liable to Sprint for costs or damages incurred by
          Sprint resulting therefrom.

     D.   Customer will not nor will it permit or assist others to abuse or
          fraudulently use Products and Services, including but not limited to
          the following:

          1.   Obtaining or attempting to obtain service by any means or device
          with intent to avoid payment; or

          2.   Unauthorized access, alteration, destruction, or any attempt
          thereof, of any information of another Sprint customer by any means or
          device; or

          3.   Using Products and Services so as to interfere with the use of
          the Sprint network by other customers or authorized users, or in
          violation of the law or in aid of any unlawful act; or

          4.   Using Products and Services in a manner which, in the sole
          opinion of Sprint, is not in accordance with generally accepted rules
          of Internet conduct as adopted and modified by Sprint.

          Upon the occurrence of any of the above, Sprint may suspend its
          performance and/or terminate the Order with no further obligation to
          Customer.

7.   ACCESS CONTROL FEATURES

     Sprint offers certain Access Control Features with the Products and
     Services which can assist in deterring unauthorized access to Customer's
     network. Customer will be responsible for the proper use of Access Control
     Features, and Sprint's sole responsibility is to provide and, at Customer's
     option, maintain such Access Control Features selected by Customer in
     accordance with the Order. However, such Access Control Features may not
     completely eliminate unauthorized network access and the resulting charges.
     Customer will be solely responsible for any unauthorized access to its
     network and any charges incurred as a result thereof.

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<PAGE>   8
                                                      Agreement No. BSG9811-261

8.   HARDWARE OR SOFTWARE NOT PROVIDED BY SPRINT

     A.  Sprint will not be responsible for the installation, operation, or
         maintenance of hardware or software not provided by Sprint; nor will
         Sprint be responsible for the transmission or reception of information
         by such hardware or software.

     B.  Customer will be responsible for the selection, use and compatibility
         of hardware or software not provided by Sprint. In the event that such
         hardware or software impairs Customer's use of the Products and
         Services, Customer will nonetheless be liable for payment for Products
         and Services. Upon notice from Sprint that the hardware or software not
         provided by Sprint is causing or is likely to cause hazard,
         interference, or service obstruction Customer will eliminate such
         hazard, interference, or service obstruction. Sprint reserves the right
         to disconnect the Products and Services until such hazard,
         interference, or service obstruction is corrected. If requested by
         Customer, Sprint may, at its then-current rates, troubleshoot
         difficulties caused by hardware or software not provided by Sprint.

     C.  Sprint will not be responsible if any changes in Products and Services
         cause hardware or software not provided by Sprint to become obsolete,
         require modification or alteration, or otherwise affect performance of
         such hardware or software.

     D.  If Customer provides its own router to interface with the Products and
         Services, then Customer is fully responsible for the installation,
         maintenance, and configuration of such Customer-provided router,
         however, Sprint will have the right, in cooperation with Customer, to
         set the initial configuration for the router interface into the
         Products and Services.

9.   PROPERTY RIGHTS AND INFORMATION PROTECTION

     A.  Sprint grants to Customer a non-exclusive and non-transferable license
         to use software which may be provided with or included in the Products
         and Services for the sole purpose of enabling Customer to use such
         Products and Services.

     B.  Title and property rights to Sprint provided software and equipment are
         and will remain with Sprint or its suppliers, whether or not embedded
         in or attached to realty. Title and property rights to IP addresses
         assigned to Customer by Sprint are and will remain with Sprint.

     C.  Customer recognizes that Products and Services provided hereunder
         constitute valuable trade secrets of Sprint or its suppliers. Customer
         will protect any software used by Customer which is provided with or
         included in the Products and Services, and will make no attempt to
         examine, copy, alter, reverse engineer, tamper with, or otherwise
         misuse such software.

     D.  Customer is prohibited from using the Sprint trade name and any Sprint
         trademark or service mark in any fashion without the prior written
         consent of Sprint.

     E.  Information that is identified as proprietary to either party which is
         delivered or disclosed to the other party will, for a period ending
         three (3) years from the expiration or termination date of the Order,
         (i) be held in confidence by the receiving party; (ii) be disclosed
         only to those employees or authorized representatives on a need-to-know
         basis, and (iii) be used only in fulfillment of the receiving party's
         obligations under the Order. Neither party will be liable for the
         disclosure or

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<PAGE>   9
                                                      Agreement No. BSG9811-261

          use of such data or proprietary information which: (a) is, or becomes,
          publicly known, other than by breach of this Order; (b) is obtained by
          the receiving party form a third party without restriction, (c) is
          previously known by the receiving party; (d) is, at any time,
          developed by the receiving party completely independent of any
          disclosures hereunder; or (e) is required to be released by law.

10.  LIMITATION OF LIABILITY

     A.   In no event will Sprint be liable, either in contract or in tort, for
          protection from unauthorized access of Customer's transmission
          facilities or Customer premise equipment; or for unauthorized access
          to or alteration, theft, or destruction of Customer's data files,
          programs, procedure, or information through accident, fraudulent means
          or devices, or any other method.

     B.   Except to the extent caused by the negligence of Sprint, Sprint will
          not be liable for claims or damages resulting from or caused by: (i)
          Customer's fault, negligence or failure to perform Customer's
          responsibilities; (ii) claims against Customer by any other party
          (except for claims of copyright or patent infringement as specified
          herein); (iii) any act or omission of any other party; or (iv)
          equipment or services furnished by a third party.

     C.   For any claim arising under or related to this Order, Customer's
          damages, if any, will be limited to those actually proven as directly
          attributable to Sprint, subject to the following limitation: Sprint
          will not be liable under any circumstances for any indirect,
          incidental or consequential damages, including, but not limited to
          lost profits, even if Sprint has been advised of the possibility of
          such damages. Sprint's liability for damages to Customer for any cause
          whatsoever, regardless of the form of action, and whether in contract
          or in tort, including negligence, will be limited to the lesser of
          $100,000 or the monthly charges paid for the affected Products and
          Services during the preceding twelve (12) months.

11.  INDEMNITIES

     A.   If promptly notified of any action brought against Customer based on a
          claim that Sprint provided Products and Services used by Customer
          infringe a United States patent or copyright, Sprint will defend such
          action at its expense and will pay any and all fees, costs, or damages
          that may be finally awarded in such action or resulting settlement. In
          the event that a final injunction is obtained against Customer
          prohibiting use of Products and Services by reason of infringement of
          a United States patent or copyright, Sprint will at its option and
          expense either:

          1.   Procure the right for Customer to continue using the Products and
               Services; or

          2.   Procure alternative Products and Services which furnish
               equivalent functionality; or

          3.   Direct Customer to return such Products and Services to Sprint,
               and in such event, the Order relating to such returned Products
               and Services will terminate.

     B.   Sprint will be indemnified and saved harmless by Customer from and
          against all loss, liability, damage and expense, including reasonable
          counsel fees, caused by:

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<PAGE>   10
                                                      Agreement No. BSG9811-261

          1.   Negligent acts or omissions of officers, employees, agents, or
               contractors of Customer which result in claims and demands for
               damages to property or for injury or death to persons, including
               payments made under any Worker's Compensation Law or under any
               plan for employee's disability or death benefits;

          2.   Any claims arising from information, data, or messages
               transmitted over the network by Customer including, but not
               limited to, claims for libel, slander, invasion of privacy,
               infringement of copyright, and invasion and/or alteration of
               private records or data; and

          3.   Claims for infringement of patents arising from the use of
               hardware and software not provided by Sprint in connection with
               Products and Services.

12.  DEFAULT/TERMINATION

     A.   "Default" will mean where Customer becomes subject of a voluntary or
          involuntary bankruptcy, insolvency, reorganization or liquidation
          proceeding; makes an assignment for the benefit of creditors; admits
          in writing its inability to pay debts when due; or fails within
          fourteen (14) days after written notice to remedy any breach of these
          terms and conditions. Upon Default by Customer, Sprint may terminate
          and retake possession of Products and Services (before, during, or
          after other actions to recover sums hereunder), in which case Customer
          will provide Sprint full and free access to Products and Services for
          this purpose. Sprint's actions above will not waive Customer's
          obligation to pay for all charges due Sprint hereunder as well as any
          other damages Sprint may have sustained because of Customer's Default.

     B.   To terminate Products and Services, Customer must provide Sprint with
          thirty (30) days prior written notice. In the event of early
          termination of any Order, Customer will pay Sprint the following
          "Termination Charges":

          1.   Business Downturn - A lump sum equal to: (i) all charges for the
               Products and Services provided up to the effective date of
               termination, (ii) 50% of the fixed monthly charges set forth in
               the Order multiplied by the number of months remaining in the
               Order term (iii) a pro-rata amount of any credits and waivers
               based on the number of months remaining in the Initial Term, and
               (iv) any other direct pass-through costs (e.g., local access). A
               "Business Downturn" is defined as Customer's closing of a site or
               elimination of IP Products and Services at a site (i.e., IP
               products and services will not be provided at such site by Sprint
               or any other carrier).

          2.   Other than a Business Downturn - A lump sum equal to 100% of the
               fixed monthly charges set forth in the Order multiplied by the
               number of months remaining in the Order term.

     C.   Customer will not be liable for the Termination Charges in this
          section if another Sprint product and service of the same or greater
          monthly price with a term no less than the remaining months in the
          Initial Term, or 1 year, whichever is greater, is ordered at the same
          time as the notice of termination is received or the termination is
          due to a material failure of Sprint. Customer agrees to provide prompt
          written notice to Sprint of any material failure by Sprint to provide
          Products and Services. If Sprint fails to cure such failure within a
          reasonable time, Customer may terminate the affected Products and
          Services on 30 days' written notice to Sprint

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<PAGE>   11
                                                      Agreement No. BSG9811-261

          without further liability, except for Customer's obligation to pay for
          all charges due Sprint for Products and Services provided through the
          date of such termination. A material failure by Sprint shall not
          include a failure caused by the local exchange carrier, Customer
          premise equipment, Customer nor any other failure caused by
          circumstances not within the sole control of Sprint.

13.  GENERAL

     A.   Customer will not assign or transfer the Order without the prior
          written consent of Sprint. Sprint may, however, assign the Order to
          its parent company or an affiliate with thirty (30) days notice.

     B.   Sprint will not be responsible for performance of its obligations
          hereunder where delayed or hindered by war, riots, embargoes,
          strikes, (whether of Sprint or others), casualties, accidents, or
          other occurrences beyond Sprint's control. Sprint will notify Customer
          in the event of any of the foregoing occurrences. Should such
          occurrence continue for more than sixty (60) days, Sprint or Customer
          may cancel the affected Products and Services with no further
          liability.

     C.   The provision of Products and Services hereunder is subject to
          Sprint's continuing approval of Customer's credit-worthiness. Customer
          will furnish financial information as Sprint may from time to time
          reasonably request to determine Customer's credit-worthiness.

     D.   Any disputes or claims arising out of or related to the Order will be
          brought within one (1) year of the occurrence.

     E.   These terms and conditions may not be modified except by written
          amendment by the parties. No agent, employee, or representative of
          Sprint or Customer has authority to bind the parties to any
          representation or warranty unless such is specifically included in
          these terms and conditions, the Order, or written amendments thereto.

     F.   Notice to the parties of disputes arising under the Order will be sent
          by registered mail to the parties to the address shown on the most
          recent Order. All other notices may be sent by regular mail.

     G.   The parties will attempt to resolve all disputes arising out of or
          related to this Order through good faith negotiations. In the event
          that the parties cannot reach an agreement, any dispute arising out of
          or relating to this Order will be finally settled by arbitration in
          accordance with the rules of the American Arbitration Association. The
          arbitration will be governed by the United States Arbitration Act, 9
          U.S.C. Sec. 1, et. seq., and judgment upon the award rendered by the
          arbitrator(s) may be entered by any court with jurisdiction. The
          arbitration will be held in the Kansas City, MO metropolitan area.

     H.   The Order, including these terms and conditions, will be construed and
          enforced in accordance with, and the validity and performance hereof
          will be governed by, the laws of the state of Kansas.

Web Side Story - IP Terms and Conditions, Attachment B         January 28, 1999

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                         SPRINT PROPRIETARY INFORMATION

<PAGE>   12
                                                       Agreement No. BSG9811-261

     I.   The Order consists only of the document upon which the parties have
          affixed their signatures, these terms and conditions and those
          documents specifically incorporated herein by reference. The Order as
          so constituted is the entire agreement between the parties with
          respect to the subject matter hereof. No modification, alteration or
          waiver of any provision hereof will be binding upon the parties unless
          evidenced in writing and signed by both parties.

Web Side Story - IP Terms and Conditions, Attachment B          January 28, 1999

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                         SPRINT PROPRIETARY INFORMATION

<PAGE>   13

                                                      Agreement No. BSG9811-261

                                    ORIGINAL

                                  ATTACHMENT C

                                   ADDENDUM TO
                         SPRINT IP PRODUCTS AND SERVICES
                              TERMS AND CONDITIONS

                       ADDITIONAL TERMS AND CONDITIONS FOR
                           INTERNET SERVICE PROVIDERS

In addition to the Sprint IP Products and Services Terms and Conditions, the
following terms and conditions will govern Sprint's provision of such Products
and Services to an Internet service provider ("Service Provider"). Customer
will be considered a Service Provider if Sprint determines that Customer's
primary business is to resell Internet access, including the sale of dedicated
Internet connections or SLIP/PPP dial-up connections to others, as these require
that an IP network, subnet, or host number be assigned to the end-user. As a
Service Provider, Customer will be Internet-knowledgeable and capable of
independently configuring TCP/IP communications, applications, and routing
software in their local network environments.

1.   Connection Equipment -- The equipment required for connection to the
     Products and Services consists of the following: IP Router, Channel Service
     Unit (CSU), Data Service Unit (DSU) or DS3-DSU, and a Inverse Multiplexer.
     Specific requirements regarding connection equipment for Service Providers
     are listed below.

     a.   Service Provider will provide its own IP Router.

     b.   Service Provider will install, maintain, configure, and manage the IP
          Router hardware and software.

     c.   Service Provider will configure its local network environment and
          applications. This includes, but may not be limited to, installation
          and configuration of Internet servers for Mail, News, and the Domain
          Name System (DNS).

     d.   At the option of Service Provider, either Sprint or Service Provider
          will provide the CSU/DSU or DS3-DSU. Sprint will always provide the
          Inverse Multiplexer.

     e.   If Sprint provides the CSU/DSU, then the service demarcation point
          will be such CSU/DSU. If Service Provider provides the CSU/DSU, then
          the service demarcation point is the LEC provided Smartjack or
          equivalent at the Service Provider's location.

     f.   Sprint will maintain the Products and Services pursuant to the Sprint
          IP Terms and Conditions, however Service Provider will be responsible
          for resolving problems which are isolated to the IP Router, CSU/DSU
          (if provided by Service Provider) or its local network environment and
          applications.

Web Side Story - IP Terms Addendum, Attachment C               December 4, 1998

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                         SPRINT PROPRIETARY INFORMATION

<PAGE>   14

                                                      Agreement No. BSG9811-261

2.   Routing Configurations -- The routing configuration supported by the
     Products and Services differs based on whether Service Provider's network
     is single-homed (e.g. only one connection to the Products and Services) or
     multi-homed (e.g. more than one connection to the Products and Services, or
     one connection to the Products and Services and an alternate connection to
     another entity providing access to the Internet).

     a.   If Service Provider's network is single-homed, then Sprint will
          configure a fixed list of static routes during service implementation
          to support routing of Service Provider's network number(s). Service
          Provider will configure the proper static routes on the IP Router for
          connection to the Products and Services. Additionally, Service
          Provider will configure the routing within its local network
          environment.

     b.   If Service Provider's network is multi-homed, then Sprint will
          configure dynamic routing during service implementation to support
          routing of Service Provider's network number(s). This requires that
          Service Provider have an Internet Autonomous System (AS) number (see
          Section 3 below entitled "Internet Registration" for additional
          information regarding AS numbers). Sprint will use Border Gateway
          Protocol Version 4 ("BGP-4") dynamic routing protocol for multi-homed
          configurations. Service Provider will configure BGP-4 on the IP Router
          for connection to the Products and Services. Service Provider will
          configure the routing within its local network environment.

     NOTE: Sprint reserves the right to configure dynamic routing for
     single-homed configurations when routing changes are requested on a regular
     or frequent basis.

3.   Internet Registrations - There are several registrations required for an
     Internet connection. These include an Internet Network Number, an Internet
     Domain Name, and if applicable an Autonomous System (AS) number (i.e.
     required for multi-homed environments only). Sprint will perform these
     Internet registrations on behalf of a Service Provider as specified below:

     a.   Internet Network Number (e.g. IP Addresses) Registration - Sprint will
          assign Service Provider one or more Class C Internet Network Numbers
          during implementation of the Products and Services. When more than one
          Class C Internet Network Number is required, Sprint will assign a
          block of contiguous Class C Internet Network Numbers, subject to
          Sprint's then current address assignment policies.

     b.   Domain Name Registration - Sprint will register a domain name for
          Service Provider during implementation of the Products and Services.
          Service Provider will provide Sprint with the domain name they wish to
          have registered at the time the Products and Services are ordered.
          Service Provider will be fully responsible for the registration of
          domain names for its customers.

     c.   Autonomous System Number Registration - If Service Provider's network
          environment is multi-homed, Sprint will, during implementation of the
          Products and Services, obtain an Autonomous System (AS) number on
          behalf of Service Provider unless Service Provider already has such an
          AS number.

Web Side Story - IP Terms Addendum, Attachment C               December 4, 1998

                                    (2 of 4)

                             PROPRIETARY INFORMATION

<PAGE>   15
                                                      Agreement No. BSG9811-261

4.   Domain Name Service (DNS) - Each user of Sprint IP Products and Services
     which registers an Internet domain name must provide at least two name
     servers for the domain: a primary DNS, and a secondary DNS for backup
     purposes. Requirements regarding DNS for Service Provider are listed below:

     a.   Service Provider will provide primary DNS for their own domain, and
          primary DNS for each of its customers' domains (if required).

     b.   Sprint will provide secondary DNS for Service Provider's domain only.

     c.   Service Provider will provide secondary DNS for each of its customers'
          domains.

5.   Trouble Reporting and Problem Resolution - Once the Products and Services
     have been implemented, Service Provider will follow standard Sprint trouble
     reporting procedures. Sprint's Service Management Center (SMC is Service
     Provider's single point of contact for resolving troubles with the Products
     and Services once initial implementation has been completed. Sprint's SMC
     is available twenty-four hours per day, seven days per week. Specific
     restrictions regarding SMC support for Service Providers are listed below:

     a.   Service Provider will resolve troubles within its local network and
          application environment. Service Provider will be responsible for all
          trouble resolution services to its own customers.

     b.   Sprint SMC will only accept trouble calls from Service Provider. The
          SMC has no responsibility towards Service Provider's customers, and
          will not accept calls from Service Provider's customers. When Service
          Provider places a trouble call to the SMC, the following information
          will be provided:

          Name and Telephone Number of Service Provider

          Name and Telephone Number of Service Provider's affected customer

          Hours of Availability

          Name of person with the authority to close trouble ticket

          Network Address of IP Router experiencing trouble

          IP Address of IP Router experiencing trouble

          Description of trouble

6.   Other Terms and Conditions

     a.   This Order does not constitute or create a joint venture, pooling
          arrangement, partnership, agency or formal business organization of
          any kind. Sprint and Service Provider will be

  Web Side Story - IP Terms Addendum, Attachment C             December 4, 1998

                                    (3 of 4)

                         SPRINT PROPRIETARY INFORMATION
<PAGE>   16
                                                      Agreement No. BSG9811-261

          independent contractors with each other for all purposes at all times
          and neither party will act as or hold itself out as agent for the
          other or create or attempt to create liabilities for the other party.

     b.   This Order is made solely for the benefit of the parties hereto and,
          except for permitted successors and assigns, confers no rights,
          duties, powers or privileges to any party who is not signatory hereto.

     c.   All customers of Service Provider will look solely to Service Provider
          for its remedies under its agreement with Service Provider. Such
          customers are not a third party beneficiary under any agreement
          between Sprint and Service Provider.

     d.   Notwithstanding Sprint's provision of Products and Services to Service
          Provider for use by its customers, Service Provider will remain liable
          for its customer's compliance with the terms and conditions of this
          Order. Failure of a Service Provider customer to comply with the terms
          and conditions of the Order will be deemed to be a breach of this
          Order by Service Provider.

     e.   Failure of Service Provider to comply with any of the terms of this
          Section will be deemed a material breach of the Order.

Web Side Story - IP Terms Addendum, Attachment C               December 4, 1998

                                    (4 of 4)

                         SPRINT PROPRIETARY INFORMATION

<PAGE>   17
                                  ATTACHMENT D

       DOMESTIC SPRINT INTERNET AND INTRANET ("IP"') PRODUCTS AND SERVICES
                PORT AVAILABILITY SERVICE LEVEL AGREEMENT ("SLA")
                              PERFORMANCE GUARANTEE

This performance guarantee measures the percentage of time a Port is available
for Customer's use.

1.   COMMITTED PORT AVAILABILITY.

     Sprint will maintain the following monthly Port availability, as
     applicable, or Sprint will provide Customer the remedies described in
     Section 3.

     (A)  END-TO-END PORT AVAILABILITY.

          (1)  Sprint-Provided Enhanced Metropolitan-Area SONET Access. Sprint
               will maintain 100% end-to-end Port availability ("Committed Port
               Availability") for each Port that utilizes Sprint-provided
               enhanced metropolitan-area SONET access.

          (2)  Sprint-Provided Non-Enhanced Metropolitan-Area SONET Access or
               Dedicated Local Access. Sprint will maintain 99.90% or greater
               end-to-end Port availability ("Committed Port Availability") for
               each Port that utilizes Sprint-provided non-enhanced
               metropolitan-area SONET access or dedicated local access.

     (B)  POP-TO-POP PORT AVAILABILITY

          Sprint will maintain 100% percent POP-to-POP Port Availability
          ("Committed Port Availability") for each Port that utilizes
          Customer-provided local access.

2.   PORT AVAILABILITY CALCULATION

     2.1  Calculation. Port availability is calculated monthly as follows:

          (24 Hours x Days in Month ) - Port Outage Time (hours)   Port
          ------------------------------------------------------ = Availability
                     (24 Hours x Days in Month)

     2.2  Components Included in Port Availability. Port availability is
          calculated based on the performance of:

          (A)  all IP Network components; and

          (B)  Sprint-provided local access facilities used to access the IP
               Network.

     2.3  Outage Time. Excluding outages caused by the factors listed below,
          outage time ("Outage Time") is the total time in a month that a
          Customer's Port is unable to transmit or receive High Level Data Link
          Control ("HDLC") traffic. Outage Time is measured from the time Sprint
          opens a

IP Port Availability Performance Guarantee                         Rev. 10/23/98

                                       1

                         Sprint Proprietary Information

<PAGE>   18

          trouble ticket to the time a problem is repaired. Outage Time does
          not include outages of less than 60 seconds duration, or time
          attributed to Customer's delay in responding to Sprint's requests for
          assistance to repair an outage. Outage Time will not include outages
          caused by:

          (A)  failure of any component not included in subsection 2.2 above;

          (B)  failure of Customer-provided local access facilities used to
               access the Sprint IP Network;

          (C)  scheduled maintenance from 12:00 A.M. - 6:00 A.M., Local time at
               site, Mondays for Internet, Wednesdays for Intranet. Refer to
               http://www.sprintlink.net for current schedule;

          (D)  failure of any components beyond the 1P side of a
               network-to-network interface ("NNI");

          (E)  failure of any components on the Frame Relay side of an IP-Frame
               Relay Gateway Service or the ATM side of an IP-ATM Gateway
               Service;

          (F)  failure of any components that Sprint cannot correct because
               Customer is inaccessible;

          (G)  troubles resolved as "No Trouble Found";

          (H)  force majeure events;

          (I)  Customer's negligence or willful misconduct or the negligence or
               willful misconduct of others authorized by Customer to use the IP
               Products and Services; or

          (J)  lateral Exchange Network Service.

3.   PORT AVAILABILITY REMEDY

     If Customer believes that Sprint has failed to meet its Committed Port
     Availability, Customer must contact its Sprint Account Manager. Upon
     Sprint's verification that the actual Port availability is below the
     Committed Port Availability, Sprint will issue a service credit ("Service
     Credit") to Customer. The Service Credit will equal the applicable
     percentage from the table below multiplied by the monthly recurring charges
     for the affected Port in the applicable month. Monthly Service Credits will
     not exceed the limits in Section 4.

<TABLE>
<CAPTION>
         Total Monthly Outage Time              Service Credit Percentage
         <S>                                    <C>
         Less than or equal to 1 hour                      5%
         Greater than one hour                            10%
</TABLE>

4.   MAXIMUM SERVICE CREDITS.

     4.1  Monthly Service Credit. Service Credits issued in any month for a Port
          under this or any other IP performance guarantee under this Agreement
          will not exceed 10% of the monthly recurring charges for the affected
          Port.

     4.2  Yearly Service Credit. Service Credits issued during a Contract Year
          under this or any other performance guarantee under this Agreement
          will not exceed 20% of Customer's total IP Products and Services
          invoiced during the Contract Year.

5.   APPLICABILITY

     This performance guarantee applies to new IP Customers on or after
     10/23/98, or existing IP Customers that extend the Term of their existing
     IP Agreement.

IP Port Availability Performance Guarantee                        Rev. 10/23/98

                                       2
                               Sprint Proprietary

<PAGE>   19

                                  ATTACHMENT E

       DOMESTIC SPRINT INTERNET AND INTRANET ("IP") PRODUCTS AND SERVICES
                  NETWORK DELAY SERVICE LEVEL AGREEMENT ("SLA")
                              PERFORMANCE GUARANTEE

This performance guarantee measures the time it takes for data to cross the IP
Network.

1.   COMMITTED NETWORK DELAY.

     1.1  Sprint's Commitment. Sprint will maintain the following average
          one-way POP-to-POP network delay ("Committed Network Delay") for its
          IP Networks, or Sprint will provide Customer the remedies described in
          Section 3.
<TABLE>

         <S>                                                <C>
         Committed Internet Network Delay                   Committed Intranet Network Delay
         Less than or equal to 75 milliseconds (ms)         Less than or equal to 60 milliseconds (ms)
</TABLE>

     1.2  Customer Requirements. Both end-point Sprint Access Nodes must be
          located within the 48 contiguous United States or the District of
          Columbia.

2.   AVERAGE NETWORK DELAY CALCULATION.

     Average Network Delay is calculated by using Sprint-initiated PING Tests,
     as follows:

     2.1  Calculations.

          2.1.1     Calculation for Dial IP Delay. POP-to-POP one-way delay is
                    the time it takes for a Sprint generated PING to go from a
                    Sprint Rotary to a Sprint PING server at the Sprint Access
                    Node to which Customer's IP site is connected. The
                    performance guarantee is based on the monthly average delay
                    response times for the Sprint-initiated PING Tests at 10
                    Customer-selected Dial Access Sites. The calculation is as
                    follows:

            Sum of One-way Delays (Internet or Intranet Networks)
            for 10 Customer Selected Rotaries                           Average
            ------------------------------------------------------   =  Network
                                    10                                  Delay

          2.1.2     Calculation for Dedicated Internet Network Delay. POP-to-POP
                    one-way delay is the time it takes for a Sprint-generated
                    PING to go one-way between two Sprint Access Nodes to which
                    Customer's IP sites are connected. The calculation is based
                    on the monthly average delay response time for the
                    Sprint-initiated PING Tests.

     2.2  Definitions. The following definitions are used in this SLA:

          (A)  Rotary - means the NPA-NYX-XXXX number dialed by Customer modems
               to access Sprint's IP Networks.

  IP Busy-Free Performance Guarantee                               Rev. 10/23/98

                                       1

                         Sprint Proprietary Information

<PAGE>   20
          (B)  Sprint Access Node - means Sprint-owned facilities connected by
               SONET long-distance fiber lines that collectively form Sprint's
               IP Networks.

     2.3  PING Test Parameters. The PING Test parameters are:

          (A)  the PING type is IP ICMP;

          (B)  the PING size is 64 bytes;

          (C)  the number of PINGs is 5 PINGs every hour for an entire calendar
               month; and

          (D)  PING time-outs shall equal 1 second (1000 milliseconds).

     2.4  Components Included in Average Network Delay. Subject to the
          exceptions listed in subsection 2.5, Average Network Delay is
          calculated based on the performance of:

          (A)  all IP Networks Components; and

          (B)  rotaries.

     2.5  Components Excluded From Average Network Delay. Average Network Delay
          does not include delays caused by:

          (A)  any components not included in subsection 2.4 above;

          (B)  failure of any components beyond the IP side of a
               network-to-network interface (NNI);

          (C)  failure of any components on the Frame Relay side of an IP-Frame
               Relay Gateway Service or the ATM side of an IP-ATM Gateway
               Service;

          (D)  Customer's negligence or willful misconduct or the negligence or
               willful misconduct of others authorized by Customer to use the IP
               Products and Services;

          (E)  force majeure events;

          (F)  scheduled maintenance from 12:00 A.M. - 6:00 A.M., Local time at
               site, Mondays for Internet, Wednesdays for Intranet. Refer to
               http://www.sprintlink.net for current schedule;

          (G)  Sprint-operated modems and Sprint Domain Name Servers ("DNS"); or

          (H)  any components operated by an Internet Service Provider or a
               network operator other than Sprint.

3.   AVERAGE NETWORK DELAY REMEDY

     If Customer believes that Sprint has failed to meet its Committed Network
     Delay, Customer must contact its Sprint Account Manager. Upon Sprint's
     verification that the actual average network delay in a month is greater
     than the Committed Network Delay, Sprint will issue a service credit
     ("Service Credit") to Customer. The Service Credit will equal 10% of the
     monthly recurring charge for the affected IP Port in the applicable month,
     not to exceed the limits in Section 4.

4.   MAXIMUM SERVICE CREDITS

     4.1  Monthly Service Credit. Service Credits issued in any month for a
          particular Port under this or any other IP performance guarantee under
          this Agreement will not exceed 10% of the monthly recurring charges
          for the affected Port.

     4.2  Yearly Service Credit. Service Credits issued during a Contract Year
          under this or any other performance guarantee under this Agreement
          will not exceed 20% of Customer's total IP Products and Services
          invoiced during the Contract Year.

IP Busy-Free Performance Guarantee                                Rev. 10/23/98

                                       2

                       Sprint Proprietary Information

<PAGE>   21

5.   APPLICABILITY

     This performance guarantee applies to new IP Customers on or after
     10/23/98, or existing IP Customers that extend the Term of their existing
     Agreement.

IP Busy-Free Performance Guarantee                                 Rev. 10/23/98

                                      3
                         Sprint Proprietary Information

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