“A comprehensive study conducted by metasearch engine Dogpile.com in collaboration with researchers from The University of Pittsburgh and The Pennsylvania State University has found that page one results returned by leading single engines Google, Yahoo! and Ask Jeeves differ substantially from one another. The study offers compelling evidence that contradicts the widely held notion that search engines are more or less alike and that searching one engine is the same as searching them all. The findings underscore the importance of utilizing multiple Web search engines to find more top-ranked information for search queries, a task Dogpile.com makes fast and easy by simultaneously searching the most popular engines and bringing together the highest ranked results in one place.”
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