How ever i have always question in mind.Is it necessary Google index for a site to getting ranking in major search Erngine? if yes then why and if not then why. Can any body explain about this problem With regards acceleratedbioscenecleanup.com
Well, obviously if Google doesn't index the site, it won't show up in a search using the Google search engine. It's the same with the other major search engines: Yahoo needs to visit and index your site for it to show up in a search using the Yahoo search engine and Microsoft has to index your site for it to show up in their Live Search. But as far as I know, all the major search engines do their own indexing, so indexing by Google won't affect your listing by the Yahoo search engine and vice versa.
I personally do not think so, each major search engine have their own bots to index your site, you do not need to be in Google first before being index by the rest. But the issue here is how many major search engine are left? MSN and Yahoo and hopefully Cuil......
If you get high rank in Google search engine for a particular keyword, it doesn't mean that you will attain the same rank in other SE for the same keyword. It's because each and every SE has their own algorithm for the ranking system.