<li>A database engine supported by Perl's <a href="http://www.hermetica.com/technologia/DBI/">DBI</a>, such as <a href="http://www.tcx.se/">MySQL</a> or <a href="http://www.postgresql.org/">PostgreSQL</a>
<li>Perl modules
<ul>
+ <li><a href="http://www.perl.com/CPAN/modules/by-module/Array/">Array-PrintCols</a>
+ <li><a href="http://www.perl.com/CPAN/modules/by-module/Term/">Term-Query</a>
<li><a href="http://www.perl.com/CPAN/modules/by-module/MIME/">MIME-Base64</a>
<li><a href="http://www.perl.com/CPAN/modules/by-module/Data">Data-Dumper</a>
<li><a href="http://www.perl.com/CPAN/modules/by-module/MD5">MD5</a>
+ <li><a href="http://www.perl.com/CPAN/modules/by-module/URI">URI</a>
<li><a href="http://www.perl.com/CPAN/modules/by-module/Net">libnet</a>
<li><a href="http://www.perl.com/CPAN/modules/by-module/LWP/">libwww-perl</a>
<li><a href="http://www.perl.com/CPAN/modules/by-module/Business/">Business-CreditCard</a>