Website SEO and Generate traffic

My website sells both an ebook, which you can buy instantly and a paperback, which a visitor can buy through Amazon.com. What I need is a NON-Black hat process to get better placement on search engine and to increase the amount of traffic coming to my site. I have already done quite a bit on my end to make this process happen, but I think some additional help is need. The following is already in place. I have optimized my website for certain keywords that are targeted towards the desired audience. I have already started article marketing and promotional blogs. I've managed to get 1 page to 3 page placement on Google for some of my keywords. I currently have over 1,700 keywords and keyword variations in my adwords campaign. I have already registered my sitemap with google. I also have implimented a Bing campaign. I have also purchased domain names for some of my more relevant keywords and set up individiually optimized keywords for those sites. I have been using Google Alerts to keep me abreast of any new Blogs etc. that deal with my particular keywords and have been commented on them with a back link to my site. As you can see, I have already put in some effort in trying to generate traffic for the site. Hopefully this will help make you task easier, if you choose to pursue this project. To get a better idea of my product and see if this project might be a fit for you, please visit my site at [[login to view URL]][1]