"Are you down with PHP?" - InfoWorld, 12/10/2001, Vol. 23 Issue 50, p54, 1p
     <EBSCOhost Web - http://search.epnet.com/login.asp>

"History of PHP?" PHP.net June 2002
     <http://www.php.net/manual/en/history.php>

Nelson, Jeremy. Personal interview. Summer 2002
     <Follow up e-mail>

"PHP." - Computerworld, 2/4/2002, Vol. 36 Issue 6, p46, 1p
     <EBSCOhost Web - http://search.epnet.com/login.asp>

"Usage Stats for May 2002." PHP.net June 2002

     PHP: 9,356,880 Domains, 1,234,295 IP Addresses
     <http://www.php.net/usage.php>

"What is PHP?" PHP.net June 2002
     <http://www.php.net/manual/en/introduction.php>