Searh Engine Market Shares
Do you believe that more than 90% of the search engine traffic generates from only three major search engines. Then wonder why some SEO companies talk about submitting to 100+ search engines. Its true that there are 1000's of search engines, Is there any use of being on the newspapers which nobody reads.
Google.com and its local search engines (such as google.co.uk) produce more than 75% of the traffic, while yahoo accounts for more than 10%. Msn (including Live.com) accounts for more than 5%
So when we talk about search engine rankings we talk about Google, as it is the key player. once the site is ranking well in google, it will rank in other search engines as well.