Links
Internal links
http://marcusson.no-ip.com/mrtg/ - Some graphs over CPU usage, RAM usage, network activity, latencies to other hosts etc.
http://titan.blinkenshell.org/ - Some status info the main shell server, links to users websites etc.
External links
http://www.irssi.org/documentation/startup - Startup HOWTO for the irssi IRC client.
http://f0rked.com/articles/irssi - How to Efficiently Use Irssi and Screen
http://konst.org.ua/centericq/ - Textbased IM client installed on the server (MSN, ICQ, AIM, Yahoo).