Glad to see you sharing this, I altuacly just penned an article that is going up on a blog of an online strategist.I am one of those copywriters that does understand SEO and that has been specializing in small business SEO for some time.One correction, you can change permalinks but it is best to have someone who understands how.It can be done with a 301 redirect in the .htaccess file or via coding to migrate an entire site's permalinks over to the keyword specific URL.I just migrated one of my entire sites over and recommend someone do it for you.There are also two paid tools I can recommend, Market Samurai and Scribe SEO.Scribe SEO can help with keyword density and also identifying just what words are showing up in the search.I have reviews on my site and also links to the special on Scribe SEO going on now.