I think if at all, you are thinking of making SEO, more emphasis should be given to back links only. But on page SEO and off page SEO together contribute to all the SEO we always need!
Useful site, I am willing to opt for sites like these!
It is from a perspective that you at lease keep on earning something than nothing. It is simple and efficient also!
It is good information, but I would like to emphasis on the thing that, we don't really need an application to be resident and guide us with online money making. Moreover, the reviews or searches for the same are not so impressive!