Your title says outrage instead of outage. And I doubt it, anythign that big they would have told us about.
I agree with you, I don't think it's geotargetting. And I don't know about you, but I don't think that really is a brief outage. 4 hours withouht checking my stats. That's going to be hard.
Maybe they are getting ready to update the system for the new search marketing quality thing they talked about earlier?
I didn't. It's most likey not changes a regular publisher can see, but more of something for them perhaps?
If you would like to know what Yahoo is up to just look at my post here about it http://forums.digitalpoint.com/showthread.php?t=236028