Document:

EXHIBIT 10.54
                                                                   -------------

                                 AMENDMENT NO. 1
                                       TO
                             SECURED PROMISSORY NOTE
                                       OF
                           BRIDGELINE SOFTWARE, INC.

         This agreement (the "AGREEMENT") is made by and between Bridgeline
Software, Inc., a Delaware corporation (the "COMPANY") and the holders of
certain secured promissory notes (as defined below) of the Company, and modifies
the terms of such notes in exchange for certain retroactive application of the
interest rate under such notes as set forth below.

                              W I T N E S S E T H :

         WHEREAS, the Company has issued $2,800,000 of secured promissory notes
in its April 2006 private financing (such secured promissory notes are
collectively hereby referred to as the "NOTES"); and,

         WHEREAS, the Notes issued in the April 2006 private financing will
mature on April 21, 2007; and,

         WHEREAS, each of the holders of the Notes have executed a Noteholder
Agency Agreement (the "AGENCY AGREEMENT") with Joseph Gunnar & Co., LLC ("JGUN"
or the "NOTEHOLDER AGENT"), wherein JGUN has been authorized by the Note holders
to act in the place of such Note holders with respect to the Notes, including
the exercise of all rights thereunder and the modification thereof; and,

         WHEREAS, the Company and the Noteholder Agent have agreed to extend the
Maturity Date (as defined in the Notes) of the Notes and to defer the payment of
interest on such Notes as set forth below; and,

         NOW, THEREFORE, in consideration of and for the mutual promises and
covenants contained herein, and for other good and valuable consideration, the
receipt of which is hereby acknowledged, the Company and the Noteholder Agent
mutually agree and intend to be legally bound to the terms of this Agreement as
follows:

         1. EXTENSION OF MATURITY DATE; NO PENALTY FOR EXTENSION. The Maturity
Date (as defined in each of the Notes) is hereby extended to the earlier of June
21, 2007 or the date the Company closes a firm underwritten initial public
offering ("IPO") of its common stock, par value $0.001 per share (the "EXTENDED
MATURITY DATE"). The parties hereto further agree that the provisions of Section
5.C. of the Notes otherwise effective at the Maturity Date, shall, instead refer
to and be effective upon the Extended Maturity Date.

         2. INTEREST RATE ADJUSTMENTS. The rate of interest on the Notes shall
be as follows: (a) prior to the original Maturity Date of the Notes, the
interest rate shall not be adjusted and

<PAGE>

shall remain as set forth in the Notes and all subsequent interest payments
shall be deferred until the Extended Maturity Date; and (b) during the period of
time between April 1, 2007 and the Extended Maturity Date, the Notes shall bear
interest at the rate of 15% per annum and all subsequent interest payments due
and payable under the Notes shall be deferred at the same interest rate until
the Extended Maturity Date (the "INCREASED INTEREST RATE"). In the event the
Note is not repaid on the Extended Maturity Date in accordance with its terms
and the terms set forth hereunder, the Notes will bear interest at the rate of
18% per annum, subject to the terms and provisions of the Notes. All interest on
the Principal outstanding from and after January 1, 2007 (the date of the last
scheduled quarterly interest payment time), including payment of 25% of the
Principal, shall be accrued and payable on the Extended Maturity Date.

         3. All other provisions of the Notes not amended or modified herein
shall continue to have their full force and effect.

         4. This Agreement may not be amended except in a written agreement
executed by the Company and by the Note holders (or by the Noteholder Agent
pursuant to the Agency Agreement).

         5. This Agreement shall be construed and interpreted in accordance with
the internal laws of the State of New York without giving effect to the conflict
of laws principles thereof.

         6. This Agreement may be executed in counterparts, which when so
executed shall constitute one and the same agreement.

                [REMAINDER OF THE PAGE INTENTIONALLY LEFT BLANK]

                                        2
<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed as of March 29, 2007.

BRIDGELINE SOFTWARE, INC.

By: /s/ Thomas Massie
    Thomas Massie, Chief Executive Officer

JOSEPH GUNNAR & CO., LLC ON BEHALF OF THE NOTE HOLDERS

By: /s/ Stephan A. Stein
    Stephan A. Stein, Chief Operating Officer

                                        3EXHIBIT 10.55
                                                                   -------------

                 FIRST AMENDMENT TO AGREEMENT AND PLAN OF MERGER

         This First Amendment to Agreement and Plan of Merger ("First
Amendment") is dated as of the 29th day of March, 2007 by and among Bridgeline
Software, Inc., a Delaware corporation ("Bridgeline"), Objectware, Inc., a
Georgia corporation (the "Seller"), and Erez M. Katz (the "Shareholder").

                              W I T N E S S E T H:

         WHEREAS, Bridgeline, Seller and Shareholder entered into that certain
Agreement and Plan of Merger dated as of December 7, 2006 (the "Merger
Agreement") pursuant to which the parties agreed that Seller would merge with
and into Bridgeline as provided therein;

         WHEREAS, terms used herein and not otherwise defined shall have the
meaning ascribed to such terms in the Merger Agreement;

         WHEREAS, the parties hereto desire to amend the Merger Agreement on the
terms and conditions set forth herein.

         NOW, THEREFORE, in consideration of the mutual covenants and agreements
contained herein, and other good and valuable consideration, the receipt,
adequacy and sufficiency at which are hereby acknowledged, the parties hereby
agree as follows:

         1. The Merger Agreement is hereby amended in the following respects:

                  (a) The "Target Amount" (as defined in the first line of
Section 1.2(b)), is hereby changed from "$900,000" to "$750,000."

                  (b) A new Section 8.6, entitled "Tax Agreements," is hereby
added as follows:

                  "8.6     TAX AGREEMENTS.

                  (a) Seller and Seller's accountants, Carr, Riggs & Ingram,
LLC, shall prepare or cause to be prepared all Tax Returns of the Seller for all
Tax periods ending on or prior to the Closing Date that are required to be filed
after the Closing Date including any Tax Return for the short period ending on
the Closing Date (the "SHORT PERIOD RETURNS"). All such Tax Returns shall be
prepared on a cash basis in a manner consistent with the prior practice of
Seller, and Shareholder shall bear all costs in connection with the preparation
of such Tax Returns. Shareholder shall provide Bridgeline with a copy of such
Tax Returns at least thirty (30) days prior to the due date for any such return
and shall make such revisions as are reasonably requested by Bridgeline.
Bridgeline shall execute and file such Tax Returns on or prior to the due date
thereof (taking into account any extensions received from the relevant tax
authorities), and Shareholder shall pay all Taxes when due with respect to said
Tax Returns, except for any Taxes arising from the failure of the Merger to
qualify as a reorganization described in Section 368(a) of the Code.

<PAGE>

                  (b) In order to apportion appropriately any Taxes relating to
a period that includes the Closing Date, the parties will, to the extent
permitted by applicable law, elect with the relevant tax authority to treat the
Closing Date as the last day of a taxable period of the Seller (a "SHORT
PERIOD"), and such period shall be treated as a Short Period and a period ending
prior to or on the Closing Date for purposes of this Agreement. In any case
where applicable law does not permit the Seller to treat the Closing Date as the
last day of a Short Period, then for purposes of this Agreement, the portion of
each Tax that is attributable to the period which would have qualified as a
Short Period if such election had been permitted by applicable law (a "STRADDLE
PERIOD") shall be (i) in the case of a Tax that is not based on net income, the
total amount of such Tax for the period in question multiplied by a fraction,
the numerator of which is the number of days in the Straddle Period, and the
denominator of which is the total number of days in such period, and (ii) in the
case of a Tax that is based on net income, the Tax that would be due with
respect to the Straddle Period if such Straddle Period were a Short Period
determined based upon an interim closing of the books.

                  (c) Any refunds that are received by Bridgeline or the Seller,
and any amounts credited against Tax to which Bridgeline or the Seller become
entitled, that relate to Seller's periods or portions thereof ending on or
before the Closing Date shall be for the account of Shareholder, and Bridgeline
shall, to the extent there is no amount due from the Shareholder under paragraph
(a) hereof, pay over to Shareholder any such refund or the amount of such credit
within 15 days after receipt or entitlement thereto.

                  (d) Neither Shareholder nor Bridgeline shall file or cause to
be filed any amended Tax Return or claims for refund with respect to Seller for
any pre-Closing period without prior notification to the other party.

                  (e) Bridgeline and Shareholder shall cooperate fully, as and
to the extent reasonably requested by the other party, in connection with the
filing of Tax Returns pursuant to this Section 8.6 and any audit, litigation, or
other proceeding with respect to such Tax Returns. Such cooperation shall
include Bridgeline's retention and (upon Shareholder's request) the provision of
records and information which are reasonably relevant to any such audit,
litigation, or other proceeding."

                  (c) Section 10.3(a) is deleted in its entirety and replaced
with the following:

                           "(a) All fees and expenses incurred in connection
with this Agreement and the transactions contemplated hereby shall be paid by
the party incurring such fees and expenses, whether or not the Merger is
consummated; PROVIDED, HOWEVER, that if the Merger is consummated, Bridgeline
shall pay up to an aggregate of $200,000 for the reasonable legal expenses of
counsel to the Seller and accounting expenses incurred in connection with the
Merger including the accounting fees for the audit of Seller's fiscal years
ending September 30, 2004, September 30, 2005 and September 30, 2006, it being
acknowledged and agreed to by the parties that the Shareholder shall be
personally responsible for any such expenses of Seller exceeding this limit."

                                        2
<PAGE>

                  (d) Section 10.3(b)(ix) is deleted in its entirety and
replaced with the following:

                           "(ix) by Seller, at any time following June 15,
2007."

                  (e) The introductory sentence of Section 10.3(c) is deleted in
its entirety and replaced with the following:

                           "Bridgeline shall pay Seller a termination fee of
$200,000 (plus reasonable expenses of the Seller actually incurred relating to
the transactions contemplated by this Agreement prior to termination) in the
event of termination of this Agreement; provided that no such termination fee
shall be paid by Bridgeline to Seller in the event of the termination of this
Agreement:"

                  (f) Section 10.3(c)(vii) is deleted in its entirety and
replaced with the following:

                           "(vii) by Bridgeline, at any time following June 15,
2007."

         2. Except as amended hereby, the Merger Agreement remains in full force
and effect.

         3. This First Amendment may be executed in multiple counterparts, each
of which shall be deemed an original and all of which taken together shall
constitute one and the same agreement.

                                        3
<PAGE>

         IN WITNESS WHEREOF, the parties hereto have executed this First
Amendment as of the day and year first above written.

                                    BRIDGELINE:

                                    Bridgeline Software, Inc.

                                    By: /s/ Thomas L. Massie
                                        --------------------------
                                    Name: Thomas L. Massie
                                    Title: President and Chief Executive Officer

                                    SELLER:

                                    Objectware, Inc.

                                    By: /s/ Erez M. Katz
                                        --------------------------
                                    Name: Erez M. Katz
                                    Title: President and Chief Executive Officer

                                    SHAREHOLDER:

                                    By: /s/ Erez M. Katz
                                        ---------------------------
                                        Erez M. Katz

                                        4

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00120-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00120-of-00352.parquet"}]]