The presentation of the results is very similar. Yahoo has wisely opted to keep things looking mostly the same, with a few exceptions. There's a linked to the cached copy of each indexed page -- now being served from Yahoo, not Google. Just about everything else on search result pages looks the same.
The actual results returned by Google and Yahoo depends on the query. For popular or common queries, there seemed to be very little difference between the two engines in top few results. But once you get past those, the results tend to diverge dramatically. And for less common or non-popular queries, Yahoo results look quite different from Google results.
While Yahoo and Google are likely using similar algorithms, one reason for the differences in what's displayed is that Yahoo's email and search teams are now working together to leverage what they've learned about spam. Since Yahoo mail processes billions of email messages, this knowledge is likely quite helpful in providing Yahoo with a much deeper understanding of the characteristics of spam -- and helping keep the nasty stuff out of the web page index. :thumbup: :yuk:



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