Some guy from Microsoft put this little browser app together. It's more playful than useful…but it does illstrate the vapidness that sometimes lurks behind a million dollar brand.  

What BlindSearch.fejus does is it pulls the results from Google, Yahoo, and Bing and puts the first page results side by side in a easy column view. However the search engine is not revealed (thus blind search) and you are invited to VOTE on which one you think pulled the most relevant results. Go ahead, try it. You'd be surprise what you find.