More blogger just type their article and don’t care about seo. Just type with the best their research keyword.
They are do not understand about seo. Web Blog SEO is important to making money. Increase traffic to getting virw your ads.
Remember to geting more revenue on Pay Per CLicks system is traffic.
Traffic important beside your keyword. I suggest you to get more time learning about seo. “Blog walking” , Siple comment on other same topics blog.
It is easy, sometime hard to do that jobs. :)
On PPC fraud click can be trouble. So think about natural linking beside link from search engine.
You can do that to increase your seo for your blog.

Update me when site is updated