i saw the lil Irc post and thats jus too much trouble
theres a site called
Http://www.gabbly.com/
after the next slash you put your forum or website index in
and it automatically makes a lil mini popup chatwindow
so type
http://gabbly.com/http://www.japanforum.com/forum/
and you'll be able to chat instantly with others who also typed in the same thing.
enjoy