Msn dating search, article sections
In my opinion their results seem to be biased more toward commerce than informational sites, when compared with Google. The Definition of Relevancy is Not.
Being the 1 content destination site on the web, Yahoo! They paid many millions of dollars to buy Del. By early they aim to make Yahoo!
While some machines automatically evolve search relevancy via genetic algorithms each major search engine still has some human input in how relevancy is calculated at the very least humans write some of the algorithms.
Search pushed that they didn't agree with link buying. In many fields they not only have internal customers, but in some fields they have product duplication, like with Yahoo!
Since they have so much of their own content and make money from some commercial organic search results it might make sense for them to bias their search results a bit toward commercial websites.
I thought it would be worth compiling notes comparing how relevancy is defined by each engine or how I perceive it based on my experiences. Search Marketing more of a closed system which factors in clickthrough rate and other algorithmic factors into their ad ranking algorithm.
Microsoft Bing vs Google vs Yahoo! Search: Comparing Search Algorithms
Site Explorer to see how well they are indexing your site and which sites link at your site. Mindset - shows you how Yahoo!
In part to make it easy for paid inclusion participants to rank, I believe Yahoo! For many years they outsourced their search service to other providers, but by the end of they realized the importance and value of search and started aggressively acquiring search companies.
Sites with the trust score of Technorati may be able to get away with more unnatural patterns than most webmasters can, but I have seen sites flamethrown with poorly mixed anchor text on low quality links, only to see the sites rank pretty well in Yahoo! Overture Keyword Selector Tool - shows prior month search volumes across Yahoo!
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It is not unreasonable for new sites to rank in Yahoo! Many people think a search engine is broken or their site is banned if they do not rank in one engine while they rank great in others.
Excessive low quality links may make your site less likely to be crawled deep or even included in the index. Business Perspectives Being the largest content site on the web makes Yahoo!
Answers which they heavily promote in their search results and throughout their network. Things that help you rank in one engine could preclude you from ranking in another.