Modules
XMPP Perl Library
XMPP Client Module
XMPP Connection Module
XMPP Debug Module
XMPP Info/Query Module
XMPP JID Module
XMPP Message Module
In depth discussion on how namespaces are handled
XMPP Presence Module
XMPP Privacy Lists Object
XMPP Protocol Module
XMPP Roster Object
XMPP Stanza Module