I have 10 sites in the same niche spread across 3 different hosting accounts. What is the best way to link them together to get maximum SEO benefits? Of these sites, one is an "authority site" that has a lot of unique content and high rankings. I want to focus most of the backlinks on this site. The rest of the sites act as fodder. So blackhatters..how would you go about linking them together for maximum benefits to the whole network?