Perl

Perl is a free programming language, originally developed for Unix operating systems, but it has been ported to Windows and Macintosh. It is extraordinarily well supported, and many excellent books have been written about it. Two of the biggest pages devoted to Perl are listed below.

Perl.com - hosted by Oreilly, a publishing company that employs the original author of Perl
Perl.org - a Perl advocacy website -