Do SEs follow same algo for all its product?
Google and yahoo are having different services. for instance, google is having image search, video search, blog search, book search and of course the web search.
Do google follow the same algo for all of its product for betterment of the search? I mean, do they follow the same concepts to refine their search results?
i.e. 1) page relevancy for keywords 2) link popularity of the page 3) good user experience of the page etc
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