Not Cuil...
I wasn't impressed and see no reason to leave Google. When I typed in my own last name I got nothing, wheras with Google there is 8 pages worth of content. When I type in my employer's name nothing, and I expected a link to my companies webpage, liek I get with google. Perhaps they just haven't indexed enough of the web to get down to that level of the web yet, but I see no reason to use it over Google, when Google has so much to offer.