I've been reading guides and forums, but im still not understanding what people mean by tier 1,2 and 3 links. What exactly do the tiers mean? Is it your main site points to a blog, that you've set to be ?tier 2? and then you promote that blog? How can people promote a tier 2 link if they don't own the link? Or does it work like this: moneysite.com is linked to abc123.com(tier 2) then I promote abc123.com? I don't understand this at all?