The deal is done: Yahoo Search is soon to be Bing. Yahoo cuts costs by ditching search technology, both companies share ad revenue, but most importantly, Microsoft now controls a bit less than 1/3 of the search engine market. All of this money, deal-making, and reinvention is designed for one purpose: to take down Google. While this is the fourth reincarnation of the Microsoft search engine, make no mistake: this is Microsoft’s best shot yet at beating its arch rival on its home turf. It’s never put so many resources towards that goal. With that in mind, will Microsoft knock its greatest threat down a peg, or will billions of dollars be flushed down the drain? The result of the Bing push will ripple across all layers of the web for years to come.