Microsoft has been spending a lot of money to get into the search business. Since launching in 2009, Bing has already lost Microsoft $5.5 billion. And if you add in Microsoft online services since 2007, the total is $9 billion.
http://money.cnn.com/2011/09/20/technology/microsoft_bing/index.htm
While Microsoft's search share has been increasing, Google's share has stayed about the same. Most of Microsoft's gains come from declining Yahoo, which happens to be Microsoft's partner and uses Bing search for it's website. Ask and AOL also have been dropping thanks to Bing.
Microsoft is optimistic it can make money off this though. They say they won't out Google Google, but will just change how people search. Such as going away from noun based "caveman speak" search to more natural human like searched.


