first of all there are a few things you can do but the most effective would be article marketing.
What I suggest is your write 2 articles per day and spin them using jetspinner(free) or thebestspinner($50+).
After you do this you want to take a spun version of your article and put it on one site and do this for like 10+ sites.
Sites I use
These are the sites I use for each article and on top of that I write articles for hubpages.com