IRChelp : http://www.irchelp.org/

Serveur IRCD

IRCD source : ftp://ftp.irc.org/irc/server/
Mailing list IRCD users : http://web.irc.org/mla/ircd-users

Clients IRC

Windows
Mirc : http://www.mirc.com/
Pirch98 : http://www.pirchat.com/
F-Irc : http://www.f-irc.com/
BersIrc : http://www.bersirc.com/

Unix
Xchat : http://www.xchat.org/
BitchX : http://www.bitchx.org/
Zircon : http://catless.ncl.ac.uk/Programs/Zircon/
Epic : http://www.epicsol.org/
Irssi : http://irssi.org/
IrcII : http://www.eterna.com.au/ircii/

Macintosh
Ircle : http://www.ircle.com/
Snak : http://www.snak.com/Snak.html