I have 3 sites in the same niche but different sub niches. Regarding Article Marketing, I am thinking about linking to all the three sites in my resource box(2 links in case 3 are not allowed).
Each of my article will be relevant to all the 3 sites and will have link to all of them. I will promote each of my article to atleast 70 properties(blog networks+free blogs+directories). They will be properly spun with good readable content.
Is this is a good method?? or should I promote only 1 site in one article??