You are working on forum discussion, this is also good way to increase your visitors, submit your signature link in forum.
You can follow the SEO tips below: 1)Submit Directories 2)Submit forums,Blogs 3)You can write article(do article submissions) 4)You can also promote the sites in Social Networking sites like Facebook,Twitter,orkut... These are free Methods to get traffic. 5) Finally get the paid seo tool from http://www.thewebpole.com/ it helps to get more traffic...