Another very effective way to bring in quality traffic to your site or sites is article marketing. Just write short articles related to your site's keywords and place your keyworded links in the resource box. Distribute these articles all over the web. Right now, what is working for me, is writing unique articles which I only place on one important site. I am using this technique with sites like SiteProNews, Buzzle and many more. Article marketing is still one of the most effective ways to get quality traffic, just try it.