To get more and more organic traffic, you need to rank (pr) in Google:
Strong SEO: use google keyword planner to check top keywords in your niche, and avoid highly competitive keywords (hard to rank for them), use your keywords in post title, post headings, meta tags etc..
Link building: the more links pointing to your site, the better. Links shall be from authority websites that are related to your niche. You can build inbound and outbound links, co-citations, and shall use the right mix of anchor text
Social Media shares: make it easy for people to share your content on Twitter, Facebook, Pinterest, etc.

All of this takes a big amount of time but totally worth it.

Cheers,
Clemence
pptpop.com // presentation design made super simple.