You need to apply SEO(Search Engine Optimization) and SEO has two aspects the On Page SEO and Off Page SEO. Before you do the SEO, first thing you need to do is what you called Keyword Research after knowing what Keyword/s you are going to use you can do the SEO thing. Do some Research about SEO. Learn from it. Good Luck!

OFFpage and ONpage
 

Organic in this you have to understand 2 thins on page (your site need to well optimized as per Google Seo guidelines) a and off page seo(creating back links for you website).

With SEO, you will not be able to benefit from quick result. The same demands a certain period of time. You must ensure that the content is unique and holds relevance.

Its in the hands of google yaar we can do quality submissions and had to post unique content in your site's blog

Need to do on page optimization
Quality link building techniques have need to do for better ranking such as forum posting, blog commenting, social bookmarking and posting classifieds sites.