Just checking out the Alexa stats and there's a huge dip in stats at: http://www.alexa.com/data/details/traffic_details?q=&url=www.yahoo.com Is this related to the new Yahoo homepage or perhaps the site went offline?
Not sure... I would imagine that it's an error in the records because thats a big drop! but it is only a brief drop.
They keep track of where users that have the alexa toolbar installed surf to and use averages to approximate the results.
That big of a drop has to be from Alexa tracking. If something like that really happened there would be news all over the place about it.