Is yahoo best or Google for SEO? Because I have done SEO for http://www.ensurehost.com/ but there is no enough response in yahoo, what Should I do now? What is difference between Google and Yahoo?
Both Yahoo and Google have different algorithms, which is why you see different results for the same keyword. It is probably better to focus on Google, because that is what the majority of the world uses.
I target Google since 70% of search traffic on the web is done via Google. IMO Google returns the most relevant results which is likely why they have the marketshare. Personally, I could care less about the other engines. Whatever I get from them is just icing on the cake. Yahoo! seems to be very slow about reacting to changes on your site. They seem to care more about pure number of links and the amount of link juice passed and not at all about whether they come from relevant sites. The only reason I would ever target Yahoo! would be the audience for my niche were old people... like 60+. They seem to like Yahoo!.