LiveJournal is an open source content management system, written
mainly in Perl and utilizing MySQL as a database backend. By itself,
it serves as a powerful content updating system. In other uses, it
is the framework application behind many successful online communities,
including LiveJournal.com and DeadJournal.com.

ljdeps is a meta-port which installs all of the perl modules needed
by LiveJournal.

WWW: http://www.livejournal.com/code/