Role of Social networking in blog traffic

For blog traffic, first we must make sure that search engines (Mainly Google) could find you, this process is called SEO. But, however, what is the benefit of Social networking? Just note that social networking like Blog Catalog, Digg, Del and etc are not a magic bullet to get page rank even though people are reading your blog they are not definitely going to link to it, all you have to do is you need to make friends that are interested in your interests and as you post they will read it then, and maybe link back.

The magic bullet for gaining page rank, readers and traffic is to have great content; in this way if you have excellent content people will naturally want to tell their friends and the friends of their friends then some will link to you.