I really don't get all that much traffic from Yahoo anyway. It doesn't make any difference to me. I think the real story here is Google, and their access to all the user data which allows them to crunch numbers and arrive at a formula that gets them the best access to both users and advertising dollars. No other engine or site comes close to the "data control" google currently wields.
Wow, I actually thought it would be a lot more than that. I almost have 1 Terabyte at my home (not completely filled), but I thought the storage would be a lot more than that.