6 percent of their searchers on the two sites combined.

The challenge facing a MicrosoftYahoo! combined search offering is that choice of search engines is often a subconscious decision on the part of the user, said Gord Hotchkiss, President CEO, Enquiro Search Solutions.For MicrosoftYahoo! to disrupt the Google habit, they have to offer a compelling enough reason to do the cognitive heavy lifting required to break a subconscious habit. A significantly differentiated and superior search experience would be such a reason. The other option is to continue to interrupt consistently upstream, by integrating search tightly into their properties or applications so that people dont have to go to the effort minimal though it is to go to Google to launch their search.