This is very important step: Check backlinks for individual posts. You are searching backlinks for 1st 3 websites for choosen keywords “how to become an SEO expert?” . If any website who is bringing link from higher pr with RELAVENT CONTENT then he will rank 1st. Google always gives priority for good quality of backlinks. Well this is very simple process :D..Try to post in forum websites. I have seen this question ” How to become an seo expert” in many forums. Try to post your article with your website link in those forums. This is the direct way of getting your post position in google top 10.4) Most webmasters says, google checks keywords in domain name. Well this is also tested. google is cecking number of keywords in domain name. Depending upon those keywords ranking is decided.5) age of post??? Yes.. google checks age of post. But this is not the serious issue. We can bring new post with same title keywords just above the old post. That is we can rank better than old post with same title keywords. This can be done only when we optimize better than him, more backlinks than him etc etc.6) Age of domain?? I dont know whether google checks age of domain or not. I have tested for many websites. But this factor is the least preferred. If keyword frequency is same for all websites and their backlinks are also same then google algorithm checks age of domain.Any many tricks which cannot be explained here.In this article i have explained only about SEO (search engine optimization) but not SEM ( search engine marketing) . SEM comes under promoting our website, linkbuilding, Advertising etc etc.