Have you start seo for your website? If you are not start seo for the website, then how your website traffic will be increasing. Then start seo for your website because SEO helps you to increase visibility as well as traffic of your website.
Just by looking at the site I am not seeing any backlink, I would say start getting some good backlinks in the form of link from the signature panel of the forums, also involve in yahoo answering.
To increase and drive traffic on your website, try social channels Like Facebook, Google Plus, Twitter etc. Share your website information on these channels and also join relevant groups to reach as many people as you can.