Before building links to your site, you need to make sure that your on-page SEO is well done. Fill in your meta tags with a good title, description, and the right keywords. Don't use the same metatags for every page on your site. Take the time to make them be specific to each page.
Also, create original and unique
content. Don't ever duplicate content from another site or it will only harm your site in the end. Google's newest algorithm change is very strict about original and unique content so take your time and write great content to put on your site. Also, Google is leaning toward
social media network so it is wise to start working on it.
The other posters in this thread pretty much gave you a general idea of what you should do to increase your ranking in the SERP (Search Engine Result Page). It's time to get to work now!