Hello guys It might seem a noob question but hopefully it's not. By the way I searched a lot about this topic on the forum and found nothing, at least I tried. So, I started a new website and since I'm going white hat I begun doing some 2.0 blogs (wordpress, blog, blogspot...) with quality content on them linking to my money site. My main question is: What's the difference between a) 20 2.0 blogs that are indexed but have 0 backlinks and b) 20 2.0 blogs that are indexed and I backlink them with other let's say 30 2.0 blogs each! I'm trying to be as white has as possible. As I know, 2.0 blogs transfer authority... but if they don't have any backlinks do they have enough value to be worth building them? Thank you very much for your answers!