Ezinearticles.com, although hit by the new Google algorithm, it is a great source of highly targeted traffic. The bounce rate of visitors I get from EZA is always less than 20%! Choosing a good keyword for an article can result in incredible amounts of traffic. I have been receiving a lot of traffic from a single well written article for a year and a half now!
Like I said at the beginning, building organic traffic is hard. Anything that promises a shortcut to an avalanche of traffic will more than likely lead to a penalty down the road. Embrace the daily grind of creating great content that helps users and provides a solution to what they’re looking for. In the end that will drive more organic traffic than any shortcut ever will.