The Extensible Messaging and Presence Protocol (XMPP) is an IETF
standard that provides a complete cross-protocol messaging solution.
The problem with current IM solutions is that they are all proprietary
and cannot talk to each other. XMPP seeks to get rid of those barriers.

For more information about the Jabber project, visit
http://www.xmpp.org.

Net::XMPP is a collection of Perl modules that provide a Perl developer
with access to the XMPP protocol. Using OOP modules, it provides a
clean interface for writing anything, from a full client to a simple
protocol tester.