I know of one. Its an in game clan chat, but they do host some events. Join skiller nerd and tell then that iskillxz recruited you. (Only way to get in is by recruit.)
I always just go in Zchat for hanging out, but if your looking for a skiller chat.. Infin Skil (on the in game Clan-Chat), or #infinity_skill on mIRC, SwiftIRC server. (Look down for a more detailed description).
-open up mIRC-
-click continue-
-click OK-
-type /server SwiftIRC and hit [enter]-
-type /join #infinity_skill and hit [enter]-
Supreme skillers led by Lucipher6 and Aasiwat is definitely the best. Steep requirements to get in, nonetheless, stil a great clan.
/server SwiftIRC
/join #skillers