How to write backlinks

I know the importance of backlinks. Everybody is looking for them, everyone wants to have a huge amount of backlinks.

But why ?

Why are backlinks so important, and why are people spending hours trying to get them. Well backlinks are just plain link that point to a site. Backlinks are important because they grow the popularity of the site they’re pointing to. Almost everyone thinks of backlinks as a vote to the other site. I will try to explain how to build better links for your site.

In the picture above sites A and C are linking to site B which links to site D. Lets say that our sites have the following PR.

Site A : PR 4

Site B : PR 4

Site C : PR 3

Site D : unknown ( or zero, site just created)

Lets say k(X) is the total number of links pointing from the site X to the rest of the world. Let’s say site http://www.onion.com is pointing to 10 sites then k(www.onion.com) would be 10. In this case Page B would benefit from page A and C with about A/k(A) + C/k(C) PR rating. And site D with a B/k(B) rating.

Of course there are a lot more to this than just the number of links pointing in/out of each site but that’s the general idea.