I'm sure EFNet or IRC Net would have something. I don't want to come across negative to the idea but they are a little messy, server, clients etc and if there's too many people on simultaneously, it's hard to keep track of conversation .... it'd be easier to either set a chat box right here and maintain traffic or register an ICQ address and load that client together with this forum. But again it's another overhead on your PC and I don't think the demand is there from our members anyway.