Google Page Rank Visually Explained
You wanna be the big red ball (doesn't everybody?)
trouble is your brand new (insignificant) site is that little blue guy...
So, how do you get your tiny little blue guy to grow up to be a big fat red one?
... see all those little purple fellas? they are EXTERNAL sites with YOUR link on them.
how do you get your site to climb in rank?
it has MORE to do with the volume of EXTERNAL sites that link TO YOU, than it does to you fiddling with what's on your little blue site.
OFF page SEO is more important than On page SEO
Reproduction of Wikipedia graphic