It's down here in Canada too I hope it doesn't occur often.. I switched to gmail because yahoo was annoying.
I understand there are some technical issues out on the net that are causing a lot of things to have problems. I had issues with my domain last night but its back up now. I'm not sure if these problems are the same or not. Gmail is working fine for me today on the East Coast. Bruce
Once in a great while I get this same message from Google. Usually all it takes is one refresh of the browser and everything is back to normal. I believe one time it took a few minutes to get back on track, but no day long down time.