Moodle itself is Copyright © 2001-2002, Martin Dougiamas. It is distributed under the GNU Public License.
Some of Moodle's libraries were written by other people, and are being redistributed as part of Moodle under the LGPL. Copyright information from this software is included below:
ADOdb - lib/adodb
Database abstraction library for MySQL, PostgreSQL, MSSQL, Oracle, Interbase, Foxpro, Access, ADO, Sybase, DB2 and ODBC.
Version: 2.00 14 May 2002
Copyright © 2000, 2001 John Lim (jlim@natsoft.com.my)
License: Dual LGPL and BSD-style
URL: http://php.weblogs.com/adodb
Graph Class - lib/graphlib.php
Class to draw line, point, bar, and area graphs, including numeric x-axis and double y-axis.
Version: 1.6.3
Copyright © 2000 Herman Veluwenkamp, hermanV@mindless.com
License: LGPL
PHP mailer - lib/class.phpmailer.php
Class for sending email using either sendmail, PHP mail(), or SMTP. Methods are based upon the standard AspEmail(tm) classes.
Version 1.25, Created 07/02/2001
Copyright © 2001 Brent R. Matzelle <bmatzelle@yahoo.com>
License: LGPL
URL: http://phpmailer.sourceforge.net
SMTP class - lib/class.smtp.php
Class that can be used to connect and communicate with any SMTP server.
It implements all the SMTP functions defined in RFC821 except TURN.
Version: 03/26/2001
Copyright © 2001 Chris Ryan <chris@greatbridge.com>
PHP Simple Excel File Generator - lib/psxlsgen.php
Class to generate very simple MS Excel files (xls) via PHP.
Version: 0.3b
Copyright © 2001 Erol Ozcan <eozcan@superonline.com>
License: GNU LGPL
URL: http://psxlsgen.sourceforge.net
IP-Atlas - lib/ipatlas
PHP scripts to show the location of an IP address on a map.
Version: 1.0
Copyright © 2002 Ivan Kozik
License: GNU GPL
URL: http://www.xpenguin.com/ip-atlas.php
Version: $Id$