I have two domains in my possession, a PR4 and a PR3. I am intending on setting them to autoblog with wordpress. Simply put, some rss content will be grabbed and posted to updated the blog everyday. I am not looking to make money from these sites, however. Rather, my main goal is to create a blog farm and pass on the link juice to my money sites so to increase the moneysite's SERP positioning. Will such a setup work? Am I wasting my time? P.S The backlinks of the PR4 and PR3 domains do not have anything to do with the niche of my affiliate sites, will this matter?