First of all thanks for sharing this idea.
Just want to ask you something. How can you guarantee your customer the backlinks that he paid for if you don't know how many software sites is going to give a backlink.
And how can we provide report to keep the customer satisfied. (if anyone knows please post it here or start a new thread).
This is also a great idea but unfortunately it`s just an idea. In order someone to believe that you making money you must provide a solid proof.
I will definitely try this method I don`t about you guys.
Any opinions from anyone will be welcomed.