POE - Perl Object Environment

A portable multitasking and networking framework for Perl

From the POE white paper:

POE is a toolkit for rapidly developing networking applications in Perl. POE’s powerful multitasking framework lets applications perform several tasks at once. POE’s message passing capabilities allow applications to be distributed across a network of machines. POE is mature, robust, and highly considered. POE is free and open, and can be field-customized for an organization’s unique needs. POE is well supported by many people, and there exists a number of free extensions on the Comprehensive Perl Archive Network.

POE's can be obtained from CPAN here: http://search.cpan.org/dist/POE/

POE has a great website with lots of information for those looking to learn about POE.