RAGE Wiki has an IRC chat channel, which is located here.
If you would like to install an IRC client instead, follow Kaishiro's XChat Setup Guide
If you already have an IRC client installed, click here.

If you need to add RAGE Wiki IRC chat channel to your IRC client, information is listed below.

Server	Ports	SSL Ports	Channel
irc.xertion.org	6660-6669, 7000	6697, 9998-9999	#RAGEWiki

If you have any problems with the IRC, please contact Kaishiro, Xertion's owner.