content: <!-- CoverPageHeader start -->
  <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
  <HTML>
  <HEAD>
  <TITLE> Authorize.Net Holdings, Inc. (Form: 8-K) </TITLE>
  </HEAD>
  <BODY TEXT="#000000" BGCOLOR="#FFFFFF" ALINK="#0000FF" HLINK="#FF0000" VLINK="#800080">
  <A NAME="DOCUMENT_TOP">&nbsp;</A>
  <P>
  <!-- CoverPageHeader end --><!-- CoverPageTitle START -->
  <A NAME="DOCUMENT_TOP">&nbsp;</A>
  <HR NOSHADE>
  <P>
  <P ALIGN="CENTER">
  <FONT SIZE="4">
  		UNITED STATES<BR>
  	SECURITIES AND EXCHANGE COMMISSION
  </FONT>
  <BR>
  <FONT SIZE="2">
  	WASHINGTON, D.C. 20549
  </FONT>
  <P ALIGN="CENTER">
  <FONT SIZE="5">
  	FORM 8-K
  </FONT>
  <FONT SIZE="2">
  
  </FONT>
  </P>
  <P ALIGN="CENTER">
  <FONT SIZE="3">
  	CURRENT REPORT
  </FONT>
  </P>
  <P ALIGN="CENTER">
  <FONT SIZE="2">
  	Pursuant to Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934
  </FONT>
  </P>
  <CENTER>
  <TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
  <TR VALIGN="BOTTOM">
  <TD WIDTH="51%">
  	&nbsp;
  </TD>
  <TD WIDTH="5%">
  	&nbsp;
  </TD>
  <TD WIDTH="44%">
  	&nbsp;
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	Date of Report (Date of Earliest Event Reported):
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	June 17, 2007
  </FONT>
  </TD>
  </TR>
  </TABLE>
  <BR>
  </CENTER>
  <!-- CoverPageTitle END --><!-- CoverPageRegistrant START -->
  <P ALIGN="CENTER"><!-- -->
  <FONT SIZE="6">
  	Authorize.Net Holdings, Inc.
  </FONT>
  <FONT SIZE="2">
  <BR>__________________________________________<BR>
  	(Exact name of registrant as specified in its charter)
  </FONT>
  <CENTER>
  <TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
  <TR VALIGN="BOTTOM">
  <TD WIDTH="33%">
  	&nbsp;
  </TD>
  <TD WIDTH="34%">
  	&nbsp;
  </TD>
  <TD WIDTH="33%">
  	&nbsp;
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	Delaware
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	000-21319
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	04-3065140
  </FONT>
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  _____________________<BR>
  	(State or other jurisdiction
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  _____________<BR>
  	(Commission
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  ______________<BR>
  	(I.R.S. Employer
  </FONT>
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	of incorporation)
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	File Number)
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	Identification No.)
  </FONT>
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	293 Boston Post Road West, Suite 220, Marlborough, Massachusetts
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	01752
  </FONT>
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  _________________________________<BR>
  	(Address of principal executive offices)
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  ___________<BR>
  	(Zip Code)
  </FONT>
  </TD>
  </TR>
  </TABLE>
  </CENTER>
  <CENTER>
  <TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
  
  <TR VALIGN="BOTTOM">
  <TD WIDTH="51%">
  	&nbsp;
  </TD>
  <TD WIDTH="5%">
  	&nbsp;
  </TD>
  <TD WIDTH="44%">
  	&nbsp;
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	Registrant&#146;s telephone number, including area code:
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="CENTER" VALIGN="TOP">
  <FONT SIZE="2">
  	508-229-3200
  </FONT>
  </TD>
  </TR>
  </TABLE>
  </CENTER>
  <P ALIGN="CENTER">
  <FONT SIZE="2">
  	Not Applicable
  <BR>______________________________________________<BR>
  	Former name or former address, if changed since last report
  </FONT>
  <P ALIGN="CENTER">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  <!-- CoverPageRegistrant END --><P><FONT SIZE="2">
  Check the appropriate box below if the Form 8-K filing is intended to
  simultaneously satisfy the filing obligation of the registrant under any
  of the following provisions:</FONT>
  </P>
  <P><FONT SIZE="2">
  [&nbsp;&nbsp;]&nbsp;&nbsp;Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)<br>
  [&nbsp;&nbsp;]&nbsp;&nbsp;Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<br>
  [&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<br>
  [&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))<br>
  </P></FONT><!-- PageBreak START -->
  <P>
  <HR NOSHADE>
  <DIV ALIGN="LEFT" STYLE="PAGE-BREAK-BEFORE:ALWAYS">
  <A HREF="#DOCUMENT_TOP">
  <U>
  <B>
  <FONT SIZE="2">Top of the Form</FONT>
  </B>
  </U>
  </A>
  </DIV>
  <!-- PageBreak END --><!-- Item START -->
  <P ALIGN="LEFT">
  <FONT SIZE="2">
  <B>
  	Item 1.01 Entry into a Material Definitive Agreement.
  </B>
  </FONT>
  </P>
  <P ALIGN="LEFT">
  <FONT SIZE="2">
  On June 17, 2007, we entered into an Agreement and Plan of Reorganization (the "Merger Agreement") by and among CyberSource Corporation ("CSC"), Congress Acquisition-Sub, Inc., Congress Acquisition Sub 1, LLC and Authorize.Net Holdings, Inc. ("Authorize.Net" or the "Company"), whereby CyberSource Corporation agrees to acquire us in a stock and cash transaction valued at approximately $565 million, as of the close of the NASDAQ Global Market System on June 15, 2007.  Under the Merger Agreement, our shareholders will receive 1.1611 shares of CyberSource common stock for every share of Authorize.Net common stock.  Additionally, our shareholders will receive a pro-rata share of $125 million in the form of a cash payment and cash in lieu of fractional shares.  The Merger Agreement was approved by the boards of directors of both CyberSource and Authorize.Net.  The transaction will be effected through two sequential mergers.  First, Congress Acquisition Sub, Inc. ("Merger Sub"), a newly formed wholly-owned subsidiary of CSC, will merge with and into the Company with the Company remaining as the surviving corporation and a wholly-owned subsidiary of CSC.  Second, the surviving corporation will then merge with and into Congress Acquisition Sub 1, LLC, a newly formed wholly-owned subsidiary of CSC ("LLC Merger Sub"), with LLC Merger Sub remaining as the surviving entity (the "Mergers ").<br><br>In addition, all options to purchase Authorize.Net common stock outstanding at the effective time of the Mergers held by Authorize.Net employees who join CSC shall be assumed in full by CSC and converted into an option to purchase CSC common stock.  All directors and executive officers of Authorize.Net who will not be joining CSC as employees following the consummation of the Mergers, and certain other designated Authorize.Net employees will have their options cancelled in exchange for cash.<br><br>The Merger Agreement contains customary representations, warranties and covenants of CSC and the Company. The representations and warranties of each party set forth in the Merger Agreement have been made solely for the benefit of the other party to the Merger Agreement and such representations and warranties should not be relied on by any other person.  In addition, such representations and warranties (i) have been qualified by disclosures made to the other party in connection with the Merger Agreement, (ii) will not survive consummation of the Mergers and cannot be the basis for any claims under the Merger Agreement by the other party after termination of the Merger Agreement, (iii) are subject to the materiality standards contained in the Merger Agreement which may differ from what may be viewed as material by investors and (iv) were made only as of the date of the Merger Agreement or such other date as is specified in the Merger Agreement. <br><br>The Mergers are subject to customary conditions to closing, including (i) the approval of the holders of CSC&#x2019;s common stock, (ii) the approval of the holders of Authorize.Net&#x2019;s common stock, (iii) the declaration by the SEC that the joint proxy statement/prospectus is effective, (iv) the lapse of applicable waiting periods under the HSR Act, (v) the absence of any material adverse effect with respect to each party&#x2019;s business (in each case, subject to certain exceptions), and (vi) the approval of CSC common stock to be issued in the Mergers to be listed on NASDAQ.  The closing of the Mergers is expected to occur late in the third quarter or in the fourth quarter of the year ending December 31, 2007.<br><br>The Merger Agreement may be terminated by either Authorize.Net or CSC under certain circumstances, including if the Mergers are not consummated by November 30, 2007.  The Merger Agreement also provides that upon termination under specified circumstances one party may be required to pay the other party a termination fee of $17 million. <br><br>The Merger Agreement provides that Robert E. Donahue, our President and CEO, will join the CSC Board of Directors once the Mergers are completed.  Roy Banks, President of Authorize.Net Corp., has also agreed to remain President of Authorize.Net after the Mergers.<br><br>The foregoing description of the Mergers and the Merger Agreement does not purport to be complete and is qualified in its entirety by reference to the Merger Agreement attached as Exhibit 2.1 and incorporated herein by reference.<br>
  </FONT>
  </P>
  <!-- Item END -->
  <BR><BR><BR><BR><!-- Item START -->
  <P ALIGN="LEFT">
  <FONT SIZE="2">
  <B>
  	Item 8.01 Other Events.
  </B>
  </FONT>
  </P>
  <P ALIGN="LEFT">
  <FONT SIZE="2">
  On June 18, 2007, we announced our intention not to proceed with our previously announced non-binding offer to acquire Payment Services Interactive Gateway, Inc.  A copy of the press release issued on June 18, 2007 and entitled "Authorize.Net Holdings, Inc. Announces Decision not to Proceed with Previously Announced Offer to Acquire Payment Services Interactive Gateway Corp." is furnished herewith as Exhibit 99.1 and is incorporated herein by reference.<br><br>
  </FONT>
  </P>
  <!-- Item END -->
  <BR><BR><BR><BR><!-- Item START -->
  <P ALIGN="LEFT">
  <FONT SIZE="2">
  <B>
  	Item 9.01 Financial Statements and Exhibits.
  </B>
  </FONT>
  </P>
  <P ALIGN="LEFT">
  <FONT SIZE="2">
  (c)  EXHIBITS.<br><br>2.1   Agreement and Plan of Reorganization<br>99.1  Press release entitled "Authorize.Net Holdings, Inc. Announces Decision not to Proceed with Previously Announced Offer to Acquire Payment Services Interactive Gateway Corp."
  </FONT>
  </P>
  <!-- Item END -->
  <BR><BR><BR><BR><P ALIGN="LEFT" STYLE="FONT-SIZE: 10PT"></P><!-- PageBreak START -->
  <P>
  <HR NOSHADE>
  <DIV ALIGN="LEFT" STYLE="PAGE-BREAK-BEFORE:ALWAYS">
  <A HREF="#DOCUMENT_TOP">
  <U>
  <B>
  <FONT SIZE="2">Top of the Form</FONT>
  </B>
  </U>
  </A>
  </DIV>
  <!-- PageBreak END --><!-- SignatureHeader START -->
  <P ALIGN="CENTER">
  <FONT SIZE="2">
  <B>
  	SIGNATURES
  </B>
  </FONT>
  </P>
  <P ALIGN="LEFT">
  <FONT SIZE="2">
  	Pursuant to the requirements of the Securities Exchange Act of 1934, the
  	registrant has duly caused this report to be signed on its behalf by the
  	undersigned hereunto duly authorized.
  </FONT>
  </P>
  <!-- SignatureHeader END --><!-- Signature START -->
  <CENTER>
  <TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
  <TR VALIGN="BOTTOM">
  <TD WIDTH="19%">
  	&nbsp;
  </TD>
  <TD WIDTH="34%">
  	&nbsp;
  </TD>
  <TD WIDTH="3%">
  	&nbsp;
  </TD>
  <TD WIDTH="1%">
  	&nbsp;
  </TD>
  <TD WIDTH="43%">
  	&nbsp;
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD COLSPAN="3" VALIGN="TOP" ALIGN="LEFT">
  <FONT SIZE="2">
  	Authorize.Net Holdings, Inc.
  </FONT>
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;&nbsp;
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD VALIGN="TOP">
  <FONT SIZE="2">
  <I>
  	June 19, 2007
  </I>
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP">
  <FONT SIZE="2">
  <I>
  	By:
  </I>
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP">
  <FONT SIZE="2">
  <I>
  	Timothy C. O'Brien
  </I>
  <BR>
  </FONT>
  </TD>
  </TR>
  <TR>
  <TD VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP">
  <HR SIZE="1" NOSHADE>
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP">
  <FONT SIZE="2">
  <I>
  	Name: Timothy C. O'Brien
  </I>
  </FONT>
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP">
  <FONT SIZE="2">
  <I>
  	Title: Chief Financial Officer
  </I>
  </FONT>
  </TD>
  </TR>
  </TABLE>
  </CENTER>
  <!-- Signature END --><!-- PageBreak START -->
  <P>
  <HR NOSHADE>
  <DIV ALIGN="LEFT" STYLE="PAGE-BREAK-BEFORE:ALWAYS">
  <A HREF="#DOCUMENT_TOP">
  <U>
  <B>
  <FONT SIZE="2">Top of the Form</FONT>
  </B>
  </U>
  </A>
  </DIV>
  <!-- PageBreak END --><P ALIGN="CENTER">
  <FONT SIZE="2">
  	Exhibit&nbsp;Index
  </FONT>
  <CENTER>
  <TABLE CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="60%">
  <TR VALIGN="BOTTOM">
  <TD WIDTH="8%">
  	&nbsp;
  </TD>
  <TD WIDTH="15%">
  	&nbsp;
  </TD>
  <TD WIDTH="77%">
  	&nbsp;
  </TD>
  </TR>
  
  <BR>
  <TR VALIGN="BOTTOM">
  <TD NOWRAP ALIGN="LEFT">
  <FONT SIZE="1">
  <B>
  	Exhibit No.
  </B>
  </FONT>
  </TD>
  <TD>
  <FONT SIZE="1">
  	&nbsp;
  </FONT>
  </TD>
  <TD NOWRAP ALIGN="LEFT">
  <FONT SIZE="1">
  <B>
  	Description
  </B>
  </FONT>
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD NOWRAP ALIGN="CENTER">
  <HR SIZE="1" NOSHADE>
  </TD>
  <TD>
  <FONT SIZE="1">
  	&nbsp;
  </FONT>
  </TD>
  <TD NOWRAP ALIGN="CENTER">
  <HR ALIGN="LEFT" SIZE="1" WIDTH="88%" NOSHADE>
  </TD>
  </TR>
  
  
  
  
  
  <TR VALIGN="BOTTOM">
  <TD VALIGN="TOP" WIDTH="8%" nowrap>
  <FONT SIZE="2">
  <DIV ALIGN="LEFT">
  	2.1
  </DIV>
  </FONT>
  </TD>
  <TD WIDTH="15%">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP" WIDTH="77%">
  <FONT SIZE="2">
  Agreement and Plan of Reorganization
  </FONT>
  </TD>
  </TR>
  <TR VALIGN="BOTTOM">
  <TD VALIGN="TOP" WIDTH="8%" nowrap>
  <FONT SIZE="2">
  <DIV ALIGN="LEFT">
  	99.1
  </DIV>
  </FONT>
  </TD>
  <TD WIDTH="15%">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP" WIDTH="77%">
  <FONT SIZE="2">
  Press Release entitled &#x201C;Authorize.Net Holdings, Inc. Announces Decision not to Proceed with Previously Announced Offer to Acquire Payment Services Interactive Gateway Corp.&#x201D;
  </FONT>
  </TD>
  </TR></TABLE></CENTER><!-- HTMLFooter START -->
  </BODY>
  </HTML>
  <!-- HTMLFooter END -->
metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "htm_21010.htm", "description": "LIVE FILING", "secsgml_size_bytes": 15464}]
metadata_filer: {"company-data": {"conformed-name": "Authorize.Net Holdings, Inc.", "cik": "0001017172", "assigned-sic": "4812", "irs-number": "043065140", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-21319", "film-number": "07929211"}, "business-address": {"street1": "293 BOSTON POST ROAD WEST", "city": "MARLBOROUGH", "state": "MA", "zip": "01752", "phone": "5082293200"}, "mail-address": {"street1": "293 BOSTON POST ROAD WEST", "city": "MARLBOROUGH", "state": "MA", "zip": "01752"}, "former-company": {"former-conformed-name": "LIGHTBRIDGE INC", "date-changed": "19960619"}}
text: Authorize.Net Holdings, Inc. (Form: 8-K)
  UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  WASHINGTON, D.C. 20549
  FORM 8-K
  CURRENT REPORT
  Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
  Date of Report (Date of Earliest Event Reported):
  June 17, 2007
  Authorize.Net Holdings, Inc.
  __________________________________________
  (Exact name of registrant as specified in its charter)
  Delaware
  000-21319
  04-3065140
  _____________________
  (State or other jurisdiction
  _____________
  (Commission
  ______________
  (I.R.S. Employer
  of incorporation)
  File Number)
  Identification No.)
  293 Boston Post Road West, Suite 220, Marlborough, Massachusetts
  01752
  _________________________________
  (Address of principal executive offices)
  ___________
  (Zip Code)
  Registrant's telephone number, including area code:
  508-229-3200
  Not Applicable
  ______________________________________________
  Former name or former address, if changed since last report
  Check the appropriate box below if the Form 8-K filing is intended to
  simultaneously satisfy the filing obligation of the registrant under any
  of the following provisions:
  [  ]  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
  [  ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
  [  ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
  [  ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
  Top of the Form
  Item 1.01 Entry into a Material Definitive Agreement.
  On June 17, 2007, we entered into an Agreement and Plan of Reorganization (the "Merger Agreement") by and among CyberSource Corporation ("CSC"), Congress Acquisition-Sub, Inc., Congress Acquisition Sub 1, LLC and Authorize.Net Holdings, Inc. ("Authorize.Net" or the "Company"), whereby CyberSource Corporation agrees to acquire us in a stock and cash transaction valued at approximately $565 million, as of the close of the NASDAQ Global Market System on June 15, 2007.  Under the Merger Agreement, our shareholders will receive 1.1611 shares of CyberSource common stock for every share of Authorize.Net common stock.  Additionally, our shareholders will receive a pro-rata share of $125 million in the form of a cash payment and cash in lieu of fractional shares.  The Merger Agreement was approved by the boards of directors of both CyberSource and Authorize.Net.  The transaction will be effected through two sequential mergers.  First, Congress Acquisition Sub, Inc. ("Merger Sub"), a newly formed wholly-owned subsidiary of CSC, will merge with and into the Company with the Company remaining as the surviving corporation and a wholly-owned subsidiary of CSC.  Second, the surviving corporation will then merge with and into Congress Acquisition Sub 1, LLC, a newly formed wholly-owned subsidiary of CSC ("LLC Merger Sub"), with LLC Merger Sub remaining as the surviving entity (the "Mergers ").
  In addition, all options to purchase Authorize.Net common stock outstanding at the effective time of the Mergers held by Authorize.Net employees who join CSC shall be assumed in full by CSC and converted into an option to purchase CSC common stock.  All directors and executive officers of Authorize.Net who will not be joining CSC as employees following the consummation of the Mergers, and certain other designated Authorize.Net employees will have their options cancelled in exchange for cash.
  The Merger Agreement contains customary representations, warranties and covenants of CSC and the Company. The representations and warranties of each party set forth in the Merger Agreement have been made solely for the benefit of the other party to the Merger Agreement and such representations and warranties should not be relied on by any other person.  In addition, such representations and warranties (i) have been qualified by disclosures made to the other party in connection with the Merger Agreement, (ii) will not survive consummation of the Mergers and cannot be the basis for any claims under the Merger Agreement by the other party after termination of the Merger Agreement, (iii) are subject to the materiality standards contained in the Merger Agreement which may differ from what may be viewed as material by investors and (iv) were made only as of the date of the Merger Agreement or such other date as is specified in the Merger Agreement.
  The Mergers are subject to customary conditions to closing, including (i) the approval of the holders of CSC's common stock, (ii) the approval of the holders of Authorize.Net's common stock, (iii) the declaration by the SEC that the joint proxy statement/prospectus is effective, (iv) the lapse of applicable waiting periods under the HSR Act, (v) the absence of any material adverse effect with respect to each party's business (in each case, subject to certain exceptions), and (vi) the approval of CSC common stock to be issued in the Mergers to be listed on NASDAQ.  The closing of the Mergers is expected to occur late in the third quarter or in the fourth quarter of the year ending December 31, 2007.
  The Merger Agreement may be terminated by either Authorize.Net or CSC under certain circumstances, including if the Mergers are not consummated by November 30, 2007.  The Merger Agreement also provides that upon termination under specified circumstances one party may be required to pay the other party a termination fee of $17 million.
  The Merger Agreement provides that Robert E. Donahue, our President and CEO, will join the CSC Board of Directors once the Mergers are completed.  Roy Banks, President of Authorize.Net Corp., has also agreed to remain President of Authorize.Net after the Mergers.
  The foregoing description of the Mergers and the Merger Agreement does not purport to be complete and is qualified in its entirety by reference to the Merger Agreement attached as Exhibit 2.1 and incorporated herein by reference.
  Item 8.01 Other Events.
  On June 18, 2007, we announced our intention not to proceed with our previously announced non-binding offer to acquire Payment Services Interactive Gateway, Inc.  A copy of the press release issued on June 18, 2007 and entitled "Authorize.Net Holdings, Inc. Announces Decision not to Proceed with Previously Announced Offer to Acquire Payment Services Interactive Gateway Corp." is furnished herewith as Exhibit 99.1 and is incorporated herein by reference.
  Item 9.01 Financial Statements and Exhibits.
  (c)  EXHIBITS.
  2.1   Agreement and Plan of Reorganization
  99.1  Press release entitled "Authorize.Net Holdings, Inc. Announces Decision not to Proceed with Previously Announced Offer to Acquire Payment Services Interactive Gateway Corp."
  Top of the Form
  SIGNATURES
  Pursuant to the requirements of the Securities Exchange Act of 1934, the
  	registrant has duly caused this report to be signed on its behalf by the
  	undersigned hereunto duly authorized.
  Authorize.Net Holdings, Inc.
  June 19, 2007
  By:
  Timothy C. O'Brien
  Name: Timothy C. O'Brien
  Title: Chief Financial Officer
  Top of the Form
  Exhibit Index
  Exhibit No.
  Description
  2.1
  Agreement and Plan of Reorganization
  99.1
  Press Release entitled "Authorize.Net Holdings, Inc. Announces Decision not to Proceed with Previously Announced Offer to Acquire Payment Services Interactive Gateway Corp."