If you look around the Marketing section, you’ll find a number of threads dealing with backlinks and traffic. For example:
Which seo technique is best to create back links?
and
Increasing traffic and ranking
The only worthwhile way to gain backlinks is to earn them, by having great content which other sites will choose to link to. Links which you place yourself are regarded as pretty worthless by search engines. Additionally, any reputable site will mark such links as nofollow, as we do here.
I suggest you read this carefully, for things to avoid: https://support.google.com/webmasters/answer/66356?hl=en
Matt Cutts offers some ideas here, but they all require effort; there are no longer any “quick fixes” in SEO.
