Speaking from my personal experience as an internet marketer, the most powerful way to get more traffic for website for free is to make full use of the search engines. This is one of the most effective free traffic generating methods. 

As you may know, search engines are the primary platform used by people all over the world to find information they need on the internet. If you have a website that gets picked up and appear in major search engines like Yahoo, Google, Yahoo and Bing, you would be able to get free traffic to your website everyday without having to pay even a single cent and effortlessly. 

The above said, from a beginner's standpoint, there is a setback in getting more traffic for websites via search engines. It may take up to days, weeks or months to have your content or website listed on the major search engines. It requires strenuous and continuous effort to develop an ongoing search engine traffic, at least at the initial stage.

If you want to get high amount of targeted traffic for websites with minimal effort, you may sign up for an account with a web traffic website. Websites like this allow you to create an account with them for free. The free features provided by the websites enable you to earn ad credits which can be utilised to get high amounts of targeted free traffic. 

When I first got started with my websites, I spent a lot of time generating traffics. Now that i have invested my time on a web traffic website, I have been able to attract free traffic around the clock without any further effort!