If I have 300 wordpress mu blog (10 different class C IP, mean that 30 blog per unique ip) My target site is a shoes relate site but my 300 wordpress mu blog is not shoes relate site My question is "which link building is better for ranking well in serp?. Between" (I don't care about little green bar PR) 300 wordpress blog ---> My shoes site or 300 wordpress blog ---> a hub page that have shoes relate (easy html with only text and 1 link in page) ---> my shoes site Thank you for any opinion.