Dogpile Metasearch Displays Results Overlap
According to Search Engine Watch, the metasearch engine Dogpile has "introduced a nifty new utility that visually displays the overlap (or lack thereof) of results from the multiple search engines it queries".
As the article explains, "(B)y comparing results side-by-side, it quickly becomes apparent that each search engine has its own unique view of the web. If you rely on a single source for search results, you're often missing a significant chunk of the web..."
The article also refers to a Dogpile study of search results overlap between the search engines from Ask Jeeves, Google and Yahoo. Out of more than 10,000 sample queries, 86% returned a different #1 ranked algorithmic result in each search engine, and 32% of these queries did not return any overlapping results in the top three algorithmic positions in each engine.
As the article explains, "(B)y comparing results side-by-side, it quickly becomes apparent that each search engine has its own unique view of the web. If you rely on a single source for search results, you're often missing a significant chunk of the web..."
The article also refers to a Dogpile study of search results overlap between the search engines from Ask Jeeves, Google and Yahoo. Out of more than 10,000 sample queries, 86% returned a different #1 ranked algorithmic result in each search engine, and 32% of these queries did not return any overlapping results in the top three algorithmic positions in each engine.
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