If installing a chatroom is too much trouble, you can use the one on Frappr's Conquer Club map. Useful for setting up realtime games with whoever happens to be on at the moment.
There's also an option to install a widget on other sites to access the chatroom as well, but identification requires Frappr's cookies which are only read on pages in their domain. So people are anonymous if the widget is accessed from anywhere else. But then again, setting up realtime games really doesn't require you to know their names in most occasions.
It does have problems sometimes though with text not appearing until you're logging off.
