Math-Random-Xorshift is a Perl module that contains a straightforward implementation of the Xorshift PRNG algorithm proposed by G. Marsaglia in 2003. The algorithm is extremely fast and passes the Diehard test, though it is not reliable enough statistically. This module is useful for games and similar applications.
WWW-Analytics-MultiTouch is a tool and a Perl library for multi-touch Web analytics. Unlike typical last-session attribution Web analytics, multi-touch gives insight into all of the various marketing channels to which a visitor is exposed before finally making the decision to buy.
Perlbal is a Perl-based reverse proxy load balancer and Web server. It processes hundreds of millions of requests a day just for LiveJournal, Vox, and TypePad, and dozens of other "Web 2.0" applications. One of the defining things about Perlbal is that almost everything can be configured or reconfigured on the fly without needing to restart the software.
Robotics::IRobot provides a Perl interface for controlling and accessing sensor data from iRobot robots that support the OI Interface. It allows for both event-driven and polling-based reading of sensor data. It provides all functionality defined in the OI Interface for Roomba 400 series and Create robots. Also provided is some additional functionality such as primative dead reckoning and enhanced use of the Create's song functionality.