Document:

<PAGE>

                                                                    EXHIBIT 10.1

                               JOINDER AGREEMENT

                                                   Dated: As of December 7, 2004

     Reference is hereby made to a certain Accounts Receivable Financing
Agreement dated as of May 27, 2003 (as amended from time to time, collectively,
the "Loan Agreement"), by and between SILICON VALLEY BANK, a California
chartered bank, with its principal place of business at 3003 Tasman Drive, Santa
Clara, California 95054 and with a loan production office located at One Newton
Executive Park, Suite 200, 2221 Washington Street, Newton, Massachusetts 02462,
doing business under the name "Silicon Valley East" (the "Bank") and NAVISITE,
INC. ("Navisite"), a Delaware corporation, CLEARBLUE TECHNOLOGIES MANAGEMENT,
INC., a Delaware corporation, AVASTA, INC., a California corporation, CONXION
CORPORATION, a California corporation, and INTREPID ACQUISITION CORP., a
Delaware corporation (collectively, the "Original Borrowers"). All capitalized
terms used herein without definitions shall have the meanings given such terms
in the Loan Agreement.

     Further reference is made to that certain Joinder Agreement dated as of
July 28, 2004 by and among the Existing Borrowers, LEXINGTON ACQUISITION CORP.
("Lexington" and, together with the Original Borrowers, the "Existing
Borrowers"), and Bank, pursuant to which Lexington joined the Loan Agreement as
a co-borrower.

1.   Joinder to Loan Agreement. The undersigned, SUREBRIDGE SERVICES, INC.,
     SUREBRIDGE ACQUISITION CORP., AND MANAGEDOPS.COM, INC., each a Delaware
     corporation (each, a "New Borrower", and, collectively, the "New Borrowers"
     and, together with the Existing Borrowers, jointly, severally and
     collectively, the "Borrower"), each hereby joins the Loan Agreement and
     each document, instrument and agreement executed in connection therewith
     (hereinafter, collectively, the "Loan Documents"), and agrees to comply
     with and be bound by all of the terms, conditions and covenants of the Loan
     Agreement and Loan Documents, as if each were originally named a "Borrower"
     therein. Without limiting the generality of the preceding sentence, each
     New Borrower agrees that it will be jointly and severally liable, together
     with each of the other New Borrowers and the Existing Borrowers, for the
     payment and performance of all obligations and liabilities of the Borrower
     under the Loan Agreement, including, without limitation, the Obligations.
     Each Borrower acknowledges that, to the extent the other Borrower has or
     may have certain rights of subrogation or reimbursement against the other
     for claims arising out of the Loan Agreement, that those rights are hereby
     waived.

2.   Subrogation and Similar Rights. Notwithstanding any other provision of the
     Loan Agreement or other related document, each Borrower irrevocably waives
     all rights that it may have at law or in equity (including, without
     limitation, any law subrogating the Borrower to the rights of Bank under
     the Loan Documents) to seek contribution, indemnification or any other form
     of reimbursement from any other Borrower, or any other Person now or
     hereafter primarily or secondarily liable for any of the Obligations, for
     any payment made by the borrower with respect to the Obligations in
     connection with the Loan Documents or otherwise and all rights that it
     might have to benefit from, or to participate in, any security for the
     Obligations as a result of any payment made by the Borrower with respect to
     the Obligations in connection with the Loan documents or otherwise. Any
     agreement providing for indemnification, reimbursement or any other
     arrangement prohibited under the Loan Agreement shall be null and void. If
     any payment is made to a Borrower in contravention of the Loan Agreement,
     such Borrower shall hold such payment in trust for Bank and such payment
     shall be promptly delivered to Bank for application to the Obligations,
     whether matured or unmatured.

<PAGE>

3.   Navisite as Agent: Assets Not Eligible. Each New Borrower hereby designates
     Navisite as its agent to request loans and other financial accommodations
     under the Loan Agreement and such loans and other financial accommodations
     are to be requested solely by the Navisite as agent for itself and each New
     Borrower. By its execution hereof, Navisite accepts such appointment.

4.   Grant of Security Interest. To secure the prompt payment and performance
     of all of the Obligations, each New Borrower hereby grants to the Bank a
     continuing lien upon and security interest in all of such New Borrower's
     now existing or hereafter arising rights and interest in the Collateral,
     whether now owned or existing or hereafter created, acquired, or arising,
     and wherever located, including, without limitation, all of such New
     Borrower's: Inventory, Equipment, Payment Intangibles, Letter-of-Credit
     Rights, Supporting Obligations, Accounts, and General Intangibles,
     Intellectual Property, Deposit Accounts, and all money, and all property
     now or at any time in the future in the Bank's possession (including claims
     and credit balances), and all proceeds (including proceeds of any insurance
     policies, proceeds of proceeds and claims against third parties), all
     products and all books and records related to any of the foregoing. Each
     New Borrower further covenants and agrees that by its execution hereof it
     shall provide all such information, complete all such forms, and take all
     such actions, and enter into all such agreements, in form and substance
     reasonably satisfactory to the Bank that are reasonably deemed necessary by
     the Bank in order to grant a valid, perfected security interest to the Bank
     in the Collateral. Each New Borrower hereby authorizes the Bank to file
     financing statements, without notice to such New Borrower, with all
     appropriate jurisdictions in order to perfect or protect the Bank's
     interest, which financing statements may indicate the Collateral as "all
     assets of the Debtor" or words of similar effect, or as being of an equal
     or lesser scope, or with greater detail, all in the Bank's discretion. Each
     New Borrower has executed and delivered a duly completed Perfection
     Certificate as of the date hereof and attached as Exhibit A hereto (the
     "Perfection Certificate"), and represents and warrants as provided in the
     Loan Agreement with respect to the matters set forth in the Perfection
     Certificate.

5.   Delivery of Documents. Each New Borrower hereby agrees that the following
     documents shall be delivered to the Bank prior to or concurrently with this
     Joinder Agreement, each in form and substance satisfactory to the Bank:

     1.   copies, certified by a duly authorized officer of such New Borrower to
          be true and complete as of the date hereof, of each of (i) the
          governing documents of such New Borrower as in effect on the date
          hereof, (ii) the resolutions of the New Borrower authorizing the
          execution and delivery of this Joinder Agreement, the other documents
          executed in connection herewith and such New Borrower's performance of
          all of the transactions contemplated hereby, and (iii) an incumbency
          certificate giving the name and bearing a specimen signature of each
          individual who shall be so authorized;

     2.   certificate of the Secretary of State of Delaware of a recent date as
          to such New Borrower's existence and good standing;

     3.   the results of UCC searches and intellectual property searches with
          respect to the Collateral indicating no Liens other than Permitted
          Liens and otherwise in form and substance satisfactory to the Bank;

     4.   the Perfection Certificate;

     5.   an Intellectual Property Security Agreement in the form of Exhibit B;
          and

<PAGE>

     6.   such other documents as the Bank may reasonably request.

                        [The remainder of this page is intentionally left blank)

<PAGE>

     This Joinder Agreement is executed as a sealed instrument under the laws of
the Commonwealth of Massachusetts as of the date first written above.

                                                 NEW BORROWERS:

                                                 SUREBRIDGE SERVICES, INC.

                                                 By: /s/ John J. Gavin, Jr.
                                                     --------------------------
                                                     Name:  John J. Gavin, Jr.
                                                     Title: Treasurer

                                                 SUREBRIDGE ACQUISITION CORP.

                                                 By: /s/ John J. Gavin, Jr.
                                                     --------------------------
                                                     Name:  John J. Gavin, Jr.
                                                     Title: Treasurer

                                                 MANAGEDOPS.COM, INC.

                                                 By: /s/ John J. Gavin, Jr.
                                                     --------------------------
                                                     Name:  John J. Gavin, Jr.
                                                     Title: Treasurer

                                                 EXISTING BORROWERS:

                                                 NAVISITE, INC.

                                                 By: /s/ James Pluntze
                                                     --------------------------
                                                     Name:  James Pluntze
                                                     Title: Treasurer

                                                 CLEARBLUE TECHNOLOGIES
                                                 MANAGEMENT, INC.

                                                 By: /s/ James Pluntze
                                                     --------------------------
                                                     Name:  James Pluntze
                                                     Title: Treasurer

                                                 AVASTA, INC.

                                                 By: /s/ James Pluntze
                                                     --------------------------
                                                     Name:  James Pluntze
                                                     Title: Treasurer

<PAGE>

                                                 CONXION CORPORATION

                                                 By: /s/ James Pluntze
                                                     --------------------------
                                                     Name:  James Pluntze
                                                     Title: Treasurer

                                                 INTREPID ACQUISITION CORP.

                                                 By: /s/ James Pluntze
                                                     --------------------------
                                                     Name:  James Pluntze
                                                     Title: Treasurer

                                                 LEXINGTON ACQUISITION CORP.

                                                 By: /s/ James Pluntze
                                                     --------------------------
                                                     Name:  James Pluntze
                                                     Title: Treasurer

                                                 BANK:

                                                 SILICON VALLEY BANK

                                                 By:
                                                    --------------------------
                                                    Name:
                                                    Title:

<PAGE>

                                                 CONXION CORPORATION

                                                 By:
                                                     --------------------------
                                                     Name:
                                                     Title:

                                                 INTREPID ACQUISITION CORP.

                                                 By:
                                                     --------------------------
                                                     Name:
                                                     Title:

                                                 LEXINGTON ACQUISITION CORP.

                                                 By:
                                                     --------------------------
                                                     Name:
                                                     Title:

                                                 BANK

                                                 SILICON VALLEY BANK

                                                 By: /s/ John K. Pieck
                                                     --------------------------
                                                     Name:  John K. Pieck
                                                     Title: Vice President<PAGE>

                                                                    Exhibit 10.2

                                JOINDER AGREEMENT

                                                   Dated: As of December 7, 2004

        Reference is hereby made to a certain Accounts Receivable Financing
Agreement dated as of May 27, 2003 (as amended from time to time, collectively,
the "Loan Agreement"), by and between SILICON VALLEY BANK, a California
chartered bank, with its principal place of business at 3003 Tasman Drive, Santa
Clara, California 95054 and with a loan production office located at One Newton
Executive Park, Suite 200, 2221 Washington Street, Newton, Massachusetts 02462,
doing business under the name "Silicon Valley East" (the "Bank") and NAVISITE,
INC. ("Navisite"), a Delaware corporation, CLEARBLUE TECHNOLOGIES MANAGEMENT,
INC., a Delaware corporation, AVASTA, INC., a California corporation, CONXION
CORPORATION, a California corporation, and INTREPID ACQUISITION CORP., a
Delaware corporation (collectively, the "Original Borrowers"). All capitalized
terms used herein without definitions shall have the meanings given such terms
in the Loan Agreement.

        Further reference is made to that certain Joinder Agreement dated as of
July 28, 2004 by and among the Existing Borrowers, LEXINGTON ACQUISITION CORP.
("Lexington"), and Bank, pursuant to which Lexington joined the Loan Agreement
as a co-borrower.

        Further reference is made to that certain Joinder Agreement of even date
hereof by and among the Existing Borrowers, SUREBRIDGE SERVICES, INC.,
SUREBRIDGE ACQUISITION CORP., AND MANAGEDOPS.COM, INC. (collectively, the
"Surebridge Entities" and, together with the Original Borrowers and Lexington,
the "Existing Borrowers"), and Bank, pursuant to which the Surebridge Entities
joined the Loan Agreement as a co-borrowers.

1.   Joinder to Loan Agreement. The undersigned, CLEARBLUE TECHNOLOGIES/
     CHICAGOWELLS, INC., CLEARBLUE TECHNOLOGIES/LAS VEGAS, INC., CLEARBLUE
     TECHNOLOGIES/MILWAUKEE, INC., CLEARBLUE TECHNOLOGIES/LOS ANGELES, INC.,
     CLEARBLUE TECHNOLOGIES/OAKBROOK, INC., CLEARBLUE TECHNOLOGIES/VIENNA, INC.,
     CLEARBLUE TECHNOLOGIES/NEW YORK, INC., CLEARBLUE TECHNOLOGIES/SANTA CLARA,
     INC., CLEARBLUE TECHNOLOGIES/DALLAS, INC., AND CLEARBLUE TECHNOLOGIES/
     SAN FRANCISCO, INC., each a [Delaware] corporation (each, a "New Borrower",
     and, collectively, the "New Borrowers" and, together with the Existing
     Borrowers, jointly, severally and collectively, the "Borrower"), each
     hereby joins the Loan Agreement and each document, instrument and agreement
     executed in connection therewith (hereinafter, collectively, the "Loan
     Documents"), and agrees to comply with and be bound by all of the terms,
     conditions and covenants of the Loan Agreement and Loan Documents, as if
     each were originally named a "Borrower" therein. Without limiting the
     generality of the preceding sentence, each New Borrower agrees that it will
     be jointly and severally liable, together with each of the other New
     Borrowers and the Existing Borrowers, for the payment and performance of
     all obligations and liabilities of the Borrower under the Loan Agreement,
     including, without limitation, the Obligations. Each Borrower acknowledges
     that, to the extent the other Borrower has or may have certain rights of
     subrogation or reimbursement against the other for claims arising out of
     the Loan Agreement, that those rights are hereby waived.

2.   Subrogation and Similar Rights. Notwithstanding any other provision of the
     Loan Agreement or other related document, each Borrower irrevocably waives
     all rights that it may have at law or in equity (including, without
     limitation, any law subrogating the Borrower to the rights of Bank under
     the Loan Documents) to seek contribution, indemnification or any other form
     of

<PAGE>

     reimbursement from any other Borrower, or any other Person now or hereafter
     primarily or secondarily liable for any of the Obligations, for any payment
     made by the borrower with respect to the Obligations in connection with the
     Loan Documents or otherwise and all rights that it might have to benefit
     from, or to participate in, any security for the Obligations as a result of
     any payment made by the Borrower with respect to the Obligations in
     connection with the Loan documents or otherwise. Any agreement providing
     for indemnification, reimbursement or any other arrangement prohibited
     under the Loan Agreement shall be null and void. If any payment is made to
     a Borrower in contravention of the Loan Agreement, such Borrower shall hold
     such payment in trust for Bank and such payment shall be promptly delivered
     to Bank for application to the Obligations, whether matured or unmatured.

3.   Navisite as Agent; Assets Not Eligible. Each New Borrower hereby designates
     Navisite as its agent to request loans and other financial accommodations
     under the Loan Agreement and such loans and other financial accommodations
     are to be requested solely by the Navisite as agent for itself and each New
     Borrower. By its execution hereof, Navisite accepts such appointment.

4.   Grant of Security Interest. To secure the prompt payment and performance of
     all of the Obligations, each New Borrower hereby grants to the Bank a
     continuing lien upon and security interest in all of such New Borrower's
     now existing or hereafter arising rights and interest in the Collateral,
     whether now owned or existing or hereafter created, acquired, or arising,
     and wherever located, including, without limitation, all of such New
     Borrower's: Inventory, Equipment, Payment Intangibles, Letter-of-Credit
     Rights, Supporting Obligations, Accounts, and General Intangibles,
     Intellectual Property, Deposit Accounts, and all money, and all property
     now or at any time in the future in the Bank's possession (including claims
     and credit balances), and all proceeds (including proceeds of any insurance
     policies, proceeds of proceeds and claims against third parties), all
     products and all books and records related to any of the foregoing. Each
     New Borrower further covenants and agrees that by its execution hereof it
     shall provide all such information, complete all such forms, and take all
     such actions, and enter into all such agreements, in form and substance
     reasonably satisfactory to the Bank that are reasonably deemed necessary by
     the Bank in order to grant a valid, perfected security interest to the Bank
     in the Collateral. Each New Borrower hereby authorizes the Bank to file
     financing statements, without notice to such New Borrower, with all
     appropriate jurisdictions in order to perfect or protect the Bank's
     interest, which financing statements may indicate the Collateral as "all
     assets of the Debtor" or words of similar effect, or as being of an equal
     or lesser scope, or with greater detail, all in the Bank's discretion. Each
     New Borrower has executed and delivered a duly completed Perfection
     Certificate as of the date hereof and attached as Exhibit A hereto (the
     "Perfection Certificate"), and represents and warrants as provided in the
     Loan Agreement with respect to the matters set forth in the Perfection
     Certificate.

5.   Delivery of Documents. Each New Borrower hereby agrees that the following
     documents shall be delivered to the Bank prior to or concurrently with this
     Joinder Agreement, each in form and substance satisfactory to the Bank:

     1.   copies, certified by a duly authorized officer of such New Borrower to
          be true and complete as of the date hereof, of each of (i) the
          governing documents of such New Borrower as in effect on the date
          hereof, (ii) the resolutions of the New Borrower authorizing the
          execution and delivery of this Joinder Agreement, the other documents
          executed in connection herewith and such New Borrower's performance of
          all of the transactions contemplated hereby, and (iii) an incumbency
          certificate giving the name and bearing a specimen signature of each
          individual who shall be so authorized;

<PAGE>

     2.   certificate of the Secretary of State of [Delaware] of a recent date
          as to such New Borrower's existence and good standing;

     3.   the results of UCC searches and intellectual property searches with
          respect to the Collateral indicating no Liens other than Permitted
          Liens and otherwise in form and substance satisfactory to the Bank;

     4.   the Perfection Certificate;

     5.   an Intellectual Property Security Agreement in the form of Exhibit B;
          and

     6.   such other documents as the Bank may reasonably request.

            [The remainder of this page is intentionally left blank]
<PAGE>

     This Joinder Agreement is executed as a sealed instrument under the laws of
the Commonwealth of Massachusetts as of the date first written above.

                                                 NEW BORROWERS:

                                                 CLEARBLUE TECHNOLOGIES/CHICAGO-
                                                 WELLS, INC.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

                                                 CLEARBLUE TECHNOLOGIES/LAS
                                                 VEGAS, INC.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

                                                 CLEARBLUE TECHNOLOGIES/
                                                 MILWAUKEE, INC.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

                                                 CLEARBLUE TECHNOLOGIES/LOS
                                                 ANGELES, INC.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

                                                 CLEARBLUE TECHNOLOGIES/
                                                 OAKBROOK, INC.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

                                                 CLEARBLUE TECHNOLOGIES/VIENNA,
                                                 INC.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

<PAGE>

                                                 CLEARBLUE TECHNOLOGIES/NEW
                                                 YORK, INC.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

                                                 CLEARBLUE TECHNOLOGIES/SANTA
                                                 CLARA, INC.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

                                                 CLEARBLUE TECHNOLOGIES/DALLAS,
                                                 INC.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

                                                 CLEARBLUE TECHNOLOGIES/SAN
                                                 FRANCISCO, INC.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

                                                 EXISTING BORROWERS;

                                                 NAVISITE, INC.

                                                 By: /s/ James Pluntze
                                                     ---------------------------
                                                     Name:  James Pluntze
                                                     Title: Treasurer

                                                 CLEARBLUE TECHNOLIGIES
                                                 MANAGEMENT, INC.

                                                 By: /s/ James Pluntze
                                                     ---------------------------
                                                     Name:  James Pluntze
                                                     Title: Treasurer
<PAGE>

                                                 AVASTA INC.

                                                 By: /s/ James Pluntze
                                                     ---------------------------
                                                     Name:  James Pluntze
                                                     Title: Treasurer

                                                 CONXION CORPORATION

                                                 By: /s/ James Pluntze
                                                     ---------------------------
                                                     Name:  James Pluntze
                                                     Title: Treasurer

                                                 INTREPID ACQUISITION CORP.

                                                 By: /s/ James Pluntze
                                                     ---------------------------
                                                     Name:  James Pluntze
                                                     Title: Treasurer

                                                 LEXINGTON ACQUISITION CORP.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

                                                 SUREBRIDGE SERVICES, INC.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

                                                 SUREBRIDGE ACQUISITION CORP.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President

                                                 MANAGEDOPS.COM, INC.

                                                 By: /s/ Arthur Becker
                                                     ---------------------------
                                                     Name:  Arthur Becker
                                                     Title: President
<PAGE>

                                                 BANK:

                                                 SILICON VALLEY BANK

                                                 By: /s/ John K. Pieck
                                                     ---------------------------
                                                     Name:  John K. Pieck
                                                     Title: Vice President

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