Been browsing throughout different threads related to Adsense, and most people seek for some super-easy solutions that would bring them lost of money without having to work hard. Adsense is not like this, and Google isn't giving the money for nothing, success can only come with the hard work. SEO techniques are good to know but nothing is as nearly as important as writing unique (not rewritten from sites like ezine articles) articles that are helpful to visitors, and if possible make these articles in more than few sentences like some people do, and then hope for a miracle. Hard work, together with originality is the best way to succeed with google. My newest project for instance is ranked No.1 at google for desired keywords (1 out of 108.000.000 results), and this is done with barely no seo, just by writing long, original articles, in less than one month time since starting it. Best of luck to all hardworkers out there.