Twitter and Google Talk may be down but there's always Chatttr.
Google Talk seems to have crashed some time this morning, prompting upset users to take to Twitter for some realtime commiseration. But now Twitter seems to also be down for the count. Fortunately there's always Chatttr to fall back on. (It's like the word Chatter but with the E replaced by a third T.) Chatttr is too small to fail. Or at least, too small to be missed if it does.
No sign-up required, just start typing: http://chatttr.com