The fact that you are reading this post most likely means that you have a blog or a page which you would like to promote.
Let me introduce you to TrafficSwarm. It's an advertising network that was founded in 2002 and has by now more than one million members (I personally joined in 2004). It's a community of people who interchange page views. That means that by viewing other members pages or blogs, you generate credits which you can use so other members view YOUR site.
A legitimate, and in fact, the most popular way to generate traffic is to set your TrafficSwarm surf page as your browser startpage. This way every time you open your browser, you generate credits, which in turn means you 'earn' exposure of your page to other members.
It's a free tool, so try it out today by clicking here.