I have been using the dogpile search engine for quite some time now. It is one of the best I’ve seen. It beats others by seconds, minutes or shall I say by the count?
Dogpile is a search of search engines. It simultaneously(Yes) searches on google, yahoo askme.&.And it lists the results. Just below the desciption it gives a note( found on google, yahoo, askme.and whichever SE could find what you were looking for).
Then you can decide which result to look into, based on your preference of SE based on the subject.
Dogpile has never complained, and piles up results for me, one of the best servants ever.