I'm interested in this, but need more info. When you say "Unique content" for the 5 articles, does that mean you spin other articles so they are "unique" or do you write them from scratch without any scraping/spinning?
Also, I like the idea of unlimited URLs, but only a total of 20 keywords for unlimited URLs? It doesn't make sense to me. Do you mean that one URL can have 20 different keywords/anchors?