Dogpile: Search Results On Major Engines Diverging by Greg Sterling, Search Engine Land (jun 1)
Dogpile has followed up its 2005 study of search results overlap with a new one involving Google, Ask, Yahoo and Microsoft. Overlap has dropped further, according to the study. First page results from each engine (presumably 10 results per page) were between 70 and 80% unique, and rarely was the first result the same across engines - "Only 3.6 percent of the #1 ranked non-sponsored search results were the same across all search engines for a given query, down from 7.0 percent in the July 2005 overlap study." There is also low overlap on the sponsored results (really - they all look the same?).
Posted by Gwen at June 1, 2007 07:22 PM