You need not go further … you need Quality AND you need Quantity when it comes to Backlinks.
Backlinks are links that originate outside of your website but point directly to your website. Backlinks can be purchased. Backlinks can be just signed-up for by filling in a form on several thousand different directory sites. However, the Backlinks that are the most valuable, the Backlinks that really make a difference in SEO results are Backlinks that are neither easy to get nor are simply purchased; they are earned, almost always through the recognition received by producing great content. Sites will not link to you unless you are providing something unique, something of value in the form of new content. Good Content can come in many forms i.e. articles, press releases, blog posts, videos, images, cartoons et al. The content must be unique, non-duplicate content.