Differences Between the Major Search Engines

First truth about search engines you should know that they are not humans.This is obvious to all but whereas humans search through hints hints life and other resources search engines crawl through web and tracks back to produce search results in by - crawling,indexing,processing,calculating,relevancy and retrieving.

First a crawler or software crawl through website to search through a website,also called Googlebot in case of Google.Tough most of search engines have similar technique but its the minor difference that makes the capability difference.
Yahoo! search techniques are been joked to made totally opposite to that of Google standards.
For Google links are most important whereas for Yahoo and MSN page words are most important.Google search engine is like old wine the older the page ,more exciting it becomes.Thus it need more time to get u in top in google then in yahoo.