Upon my research (within the forum), it seems to me that 'nofollow' links are pretty useless in terms of SERPs and PR. They seem to be only good for 'diversifying' your backlinks so that it appears 'normal' to google. In terms of juice, they dont really pass on much (or even if they are, they probably wont be able to cause much impact). I am not 100% sure if the above theories are correct as I am fairly new myself. It simply want to sum up my research here for people who are at the same stage as me (new to SEO) and see what you guys think? In another words, its really quite POINTLESS to use scrapebox and commenting on 'NOFOLLOW" auto-approve blogs, since they arent going to help much anyways - maybe they will start to help after you got some good "d-o-f-o-l-l-o-w" links with high PR? Any inputs will be appreciated.