psyced, a scalable multi-protocol multi-casting chat, messaging and social server solution to build decentralized chat networks upon, released as open source.
/msg nickserv identify <password>
This plugin for Azureus works as an IRC bot. You can remote control your Azureus from IRC.
instant messaging made portable and secure
irssi script for automatic link posting to del.icio.us
irssi script for automatic charset conversion