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">
  	April 26, 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">
  	Lightbridge, Inc.
  <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 3.03 Material Modifications to Rights of Security Holders.
  </B>
  </FONT>
  </P>
  <P ALIGN="LEFT">
  <FONT SIZE="2">
  See the disclosure material contained below under Item 5.03.
  </FONT>
  </P>
  <!-- Item END -->
  <BR><BR><BR><BR><!-- Item START -->
  <P ALIGN="LEFT">
  <FONT SIZE="2">
  <B>
  	Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.
  </B>
  </FONT>
  </P>
  <P ALIGN="LEFT">
  <FONT SIZE="2">
  On April 30, 2007, Lightbridge, Inc. (the "Company") issued a press release stating that it changed its corporate name to "Authorize.Net Holdings, Inc."<br><br>The Company changed its corporate name by means of a merger of its wholly owned Delaware corporate subsidiary, Authorize.Net Holdings, Inc., with and into the Company.  To effect that merger, the Company filed a certificate of ownership and merger with the Secretary of State of the State of Delaware.  That certificate states that the current certificate of incorporation of the Company will continue as the certificate of incorporation of the Company after the merger, except that the current certificate of incorporation of the Company was amended in the merger so that the corporate name of the Company will be "Authorize.Net Holdings, Inc." instead of "Lightbridge, Inc."  The certificate of ownership and merger states that the effective date and time of the merger and related name change was as of 4:01 P.M. Eastern Standard Time on April 27, 2007.<br><br>Except for this change in corporate name, the Company&#x2019;s capital stock, business and operations will not be affected by this merger.<br><br>The foregoing description of the certificate of ownership and merger does not purport to be complete and is qualified in its entirety by the terms and conditions of the certificate of ownership and merger, a copy of which is filed as Exhibit 3.1 to this Form 8-K and is incorporated by reference.  A copy of the press release issued by the Company on April 30, 2007 referenced above is filed as Exhibit 99.1 to this Form 8-K.<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">
  Certificate of Ownership and Merger of Authorize.Net Holdings, Inc. With and Into Lightbridge, Inc.<br><br>Press release issued by the Company on April 30, 2007 entitled "Lightbridge Completes Transformation to a Payment Processing Company With Name Change to Authorize.Net."
  </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>
  	April 30, 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">
  	3.1
  </DIV>
  </FONT>
  </TD>
  <TD WIDTH="15%">
  <FONT SIZE="2">
  	&nbsp;
  </FONT>
  </TD>
  <TD ALIGN="LEFT" VALIGN="TOP" WIDTH="77%">
  <FONT SIZE="2">
  Certificate of Ownership and Merger of Authorize.Net Holdings, Inc. With and Into Lightbridge, Inc.
  </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 "Lightbridge Completes Transformation to a Payment Processing Company With Name Change to Authorize.Net"
  </FONT>
  </TD>
  </TR></TABLE></CENTER><!-- HTMLFooter START -->
  </BODY>
  </HTML>
  <!-- HTMLFooter END -->
metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "htm_19921.htm", "description": "LIVE FILING", "secsgml_size_bytes": 12302}]
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": "07804105"}, "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):
  April 26, 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
  Lightbridge, Inc.
  ______________________________________________
  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 3.03 Material Modifications to Rights of Security Holders.
  See the disclosure material contained below under Item 5.03.
  Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.
  On April 30, 2007, Lightbridge, Inc. (the "Company") issued a press release stating that it changed its corporate name to "Authorize.Net Holdings, Inc."
  The Company changed its corporate name by means of a merger of its wholly owned Delaware corporate subsidiary, Authorize.Net Holdings, Inc., with and into the Company.  To effect that merger, the Company filed a certificate of ownership and merger with the Secretary of State of the State of Delaware.  That certificate states that the current certificate of incorporation of the Company will continue as the certificate of incorporation of the Company after the merger, except that the current certificate of incorporation of the Company was amended in the merger so that the corporate name of the Company will be "Authorize.Net Holdings, Inc." instead of "Lightbridge, Inc."  The certificate of ownership and merger states that the effective date and time of the merger and related name change was as of 4:01 P.M. Eastern Standard Time on April 27, 2007.
  Except for this change in corporate name, the Company's capital stock, business and operations will not be affected by this merger.
  The foregoing description of the certificate of ownership and merger does not purport to be complete and is qualified in its entirety by the terms and conditions of the certificate of ownership and merger, a copy of which is filed as Exhibit 3.1 to this Form 8-K and is incorporated by reference.  A copy of the press release issued by the Company on April 30, 2007 referenced above is filed as Exhibit 99.1 to this Form 8-K.
  Item 9.01 Financial Statements and Exhibits.
  Certificate of Ownership and Merger of Authorize.Net Holdings, Inc. With and Into Lightbridge, Inc.
  Press release issued by the Company on April 30, 2007 entitled "Lightbridge Completes Transformation to a Payment Processing Company With Name Change to Authorize.Net."
  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.
  April 30, 2007
  By:
  Timothy C. O'Brien
  Name: Timothy C. O'Brien
  Title: Chief Financial Officer
  Top of the Form
  Exhibit Index
  Exhibit No.
  Description
  3.1
  Certificate of Ownership and Merger of Authorize.Net Holdings, Inc. With and Into Lightbridge, Inc.
  99.1
  Press Release entitled "Lightbridge Completes Transformation to a Payment Processing Company With Name Change to Authorize.Net"