I seem to be the only one (so far) who voted for Dogpile. Actually it wasn't really fair or accurate to include it in the choices, since it's not an engine per se, but rather an online service that uses a number of search engines. It's handy, though -- fairly good at weeding out duplicates, and sponsored links are (relatively) clearly marked as such and are separated from "real" hits. Their list of engines has varied over the years, but has always included Google and Yahoo. I'm not sure whether their including Google subjects one to the same privacy problems as one could face when using Google directly.