Hey there. I checked last year's wiki and it looked like we were using
#cls on Freenode last year for a back-channel discussion. Is that channel going to be a thing this year again?
For those of you who need a Freenode background, check out: http://freenode.net/using_the_network.shtml
If you don't want to download IRC software, Freenode also has a web client, or you can use tools like IRCCloud.