Traffic is the basis of adsense revenue.

As you know, without traffic there are no clicks and no money. To bring traffic we do SEO, Social media marketing etc. We also create a lot of backlinks to improve the SERP (search engine results page) position of our keywords. We can post on forums & blogs; do video marketing and similar things to bring
traffic. The more traffic we get the better would be the earnings.

With my experience, the best platform for adsense websites is to use wordpress. Keeping articles in different categories, adding some seo plugins (I just use LightSEO and simple tags), regular posting targeting keywords with decent conversion etc would make things easy.

Targeting High CPC Keywords:

What is the benefit if you’re targeting those keywords with very low CPC?

There is no revenue benefit at all. It’s important to find high paying keywords(you can simply use the google Adwords keyword tool to find excellent CPC keywords). I prefer to target keywords with CPC .50 dollar to 2-3 dollars as there are a lot of such keywords in every niche. If you’re going after the high CPC keywords the number of keywords would be less & competition’d be high.

So you should be practical and wise while selecting the keywords. Placing the keyword in your title, including a few times in content (3% keyword density),a heading tag, some font customization (bold, italic, underline), a link and an image with the keyword (alt) would do the basic on-site SEO stuff. Once it’s published do some quick promotion on social networks and bookmarking websites to improve the traffic. You know everything about SEO, so it’s not necessary to explain things.