The best way to drive traffic to your website so as to be able to earn a lot more through AdSense is to have valuable and relevant content.
As soon as you have lots of valuable and relevant content, you would be able to get a lot of traffic for AdSense without a lot of effort on your part.
Let us see how this process becomes feasible.
If you have valuable content which is relevant to the keywords that you want to optimize (search engine optimize) your website for then, the search engines would love your website simply because you have unique and fresh content! It is however imprudent that you build links for your website so that the search engine may fall in love with it.
The process of link building becomes much easier if you have relevant information.
Let us say that you decided to dig your website so that it may get some link juice then, what you will soon see (if your website does really have valuable information) is that you would find that many other people have also bookmarked your website! This saves tons of time for you.
What is more, if you have something (which may be a tool or a script) that is extremely useful for people then, you automatically get a lot more links! For example, if you have a web page on 3 ways to use petrol efficiently and then, install a script that helps people find which gas station provides them with the cheapest petrol nearby then, you can rest assured that people will definitely link back to your site! To find such nifty tools all you need to do is look them up in the search engines yourself!