http://www.ircworks.com/
http://www.invlogic.com/irc/ctcp.html
http://www.funet.fi/~irc/server/
http://www.geocities.com/SiliconValley/Peaks/8771/sprimerix/
http://www.unifix-online.com/BWidget/
http://www.lag.net/~robey/ctcp/
http://www.irc3.org
http://www.the-project.org/