As written above, this is not a get-rich-quick system, you need to dedicate time on it to make it work for you. Also, don’t expect money coming in after one day. This is not a shortcut to riches. Especially in the beginning, you will have a lot of unpaid days. But if you are persistent, and keep going forward, you can expect money to come your way.
Practicing SEO now for over a decade, I don’t often come across many blog posts on the subject that introduce me to anything new — especially when it comes to link building. However, I must admit, after reading your article here I had to bookmark it to refer back to it in the future, as I’m sure it will come in handy when doing SEO for my websites later on down the road.