My first question in my mind was how much is Google losing from this eBay move?
Only Google and eBay know the true number but as Greg Sterling reported via a Mediapost piece and as Brett Tabke noted in the WebmasterWorld thread, eBay spent about $26 million monthly on Google AdWords in the U.S. market.
That translates to $312 million annually. That is not a small figure. But Google's stock has risen almost $15 buck since eBay's move. So I suspect this does not bother Wall Street.
Forum discussion at WebmasterWorld.