Version 2 of the Dancer modern Perl web framework. Mostly ready for use, but needs a lot of documentation love.
Perl::Critic is the static code analyzer for the Perl 5 language.
MetaCPAN is an open source search engine for the Comprehensive Perl Archive Network (CPAN), an ever growing archive of code and documentation for the Perl programming language.
Thruk is a multibackend monitoring webinterface for Nagios, Icinga and Shinken using the Livestatus API.
OTRS is an Open source Ticket Request System with many features to manage customer telephone calls and e-mails. It is distributed under the GNU AFFERO General Public License (AGPL) and tested on Linux
With (R)?ex you can manage all your boxes from a central point through the complete process of configuration management and software deployment.