“Bing is bigger than you think,” Microsoft boasts, at 33% of US searches

Just to prove a point here that these "33%" numbers don't make sense. They claim 33% of the search pie but less than 10% of the profits.

Quite likely. Even on chrome, people tend to type google which by default searched google on google :)

Totally true. Nearly all non techies I know use the address bar as a search bar, and once they reach Google in some way, they type the desired site name (not the URL) and click the first result in the list, which hopefully is what they wanted. I find this frustrating, but stopped any attempt to educate them to a correct use of browsers and search engines because there is simply no hope.