I have talked to many SEO specialists they all agreed to – Forum posting and forum signatures are very over-rated and most effective method of driving traffic would be video tutorial submissions. Social Bookmarking- You can use reddit,stumpleupon,digg to get more traffic to your site use google trends for fast traffic Submit videos based on keywords(in your niche)...

Content Sharing sites have seen a boom not only since the Youtube mega-deal. But why the hell do we need documents sharing? I think, Sharing in this way is social networking of office documents. Remember how Wikipedia was being used by every PR agency in the world to upload their clients information until the site said they no longer want PR agencies to contribute. So...