Originally Posted by sbglobal123
Social Media Optimization (Face book, Twitter, Linked In)
Just a short comment: forum posting does not bring so much link juice, because the pages you actually post using your signature are often no-follow ones or quite low ranked.
Directory submission is also a quite old fashioned SEO technique that isn't getting so much credit these days.
In which concerns social media, you may also keep an eye on the video communities such as YouTube and Vimeo. You can create content and get visits from there too.