I am not talking about copies but about unique articles. I have enough content on my site, but not enough links. In perfect world users would link to my site, but since this is not the case I need some extra link buliding. That is why I wrote articles which will be published only once, different articles for each site.
But the question is another:
Where is the line between paid links-against google policies and non paid-not against google policies.
So when you pay for a link, it is obvious. When you give some material benefit in exchange for a link, it is again probably obviously that it is again against google policies.
But in my case, isn't again similar, giving benefit (content) in exchange for a link? I hope I am not complicated too much, I just want to make a proper link building plan.