I made a nifty list of currently at least semi-active clans. I'm sure there are more out there that I forgot or don't know about. So add to the list. And if anything is inaccurate, add that as well.
Also I've noticed that pretty much no one keeps a website anymore. I strongly suggest every clan keeps a website with an up-to-date list of members and match results. It doesn't have to be fancy. HTML is pretty simple and there are a lot of free or very cheap web hosts out there. There should be no reason for not keeping a clan website.
Heres the list, complete with clan name, website, irc channel, and members. Maybe we should include a leader/representative as well, so people know who to get in touch with. Though that could just as easily be on the clan website!!!
The DOMsquad
www.domsquad.org#domsquad
RoyalBlood, FuRy, JBallZ, vj, Manic, Penguin, swk, Dru
Clan Emo
#emo
MFornal, Kaltorak, Suicide King, carcoal, herron, rage, clipz, iceman, spunk
Clan Prozak
#prozak
CID · DirtyTaco · CRASH · Cy · Jake · Ruddy · gwb
Clan Smurf
smurf.g33kz.net
#clan_smurf
Anrkist, Baron, Blue, Borgus, Calrathan, Fembot, Fryth, Hell, Knack, Krayzie, Mallrat, Murdock, Nutiket, Oddjob, Picklehead, Razor, Splats
Team GT
#team_gt
Gohan, Snipen, Dew, TerMin8oR
eXiled Paint
#team_xp
MiCrOpTiC, Pyro, ViRuSMoFo, Aura, CrazyLady, PennyNUT
Er33t
#team_er33t
XtremeBain, Donk, Y2J, Bob, Mental
S-Unit
#s-unit
FyreStorm, MarKK, HockeyStar, BooMeR, Tony, BeaveR