From what I know, currently Google is focus more on

1. CTR (Click Through Rate)* - more people search your website at Google and "click" will boost your position

2. Social Signal - get more people to share your website at social media (Facebook/ Twitter/ Instagram/ Pinterest/ LinkedIn etc) will definitely boost your ranking

3. Backlinks/ Bookmarking from High PR sites

*Organic search

Sure, other factors may also effect your ranking. In fact it's very long list, but above are most importance factors.

You may also want to submit your unique articles and directory sites.

These are what I learned in the past 2 years (till now). Please correct me if I'm wrong.

Cheers!