The issue is not whether there is traffic to generate, but the fact that there are just too many ways to do it. There are just too many options on the table.
It is very easy to get distracted. It is very easy to get confused among all the different methods of driving traffic. In fact, if you came across a website that allows you to build a link that points to your site, that is a potential source of traffic.
One of the most powerful sources of traffic that you should never neglect is forum traffic. This book spells out why you should consider forum marketing and the benefits it brings to the table.