It's All About Content
A lot of people focus on backlinking but I recently noticed that content is really the way to go. I've personally been using the google instant search technique for those untapped keywords and one of them has been getting me MASSIVE amounts of traffic.
So for anybody new here I do recommend that you keep writing and updating your blog regularly. Keep posting new things that have keywords in them, without keywords you might be wasting your time.
Also don't forget to socially bookmark you sites, this has helped me tremendously. My posts on my websites get ranked and updated almost instantly. Just something to think about and do.