From : http://www.kalzumeus.com/2010/07/17/seo-for-software-companies/
SEO In A Nutshell
People treat SEO like it is black magic, but at the core it is very simple: Content + Links = You Win.
A good explanation of “content” and “links”, and how to generate both. Some interesting numbers on the costs and profits from targeting long tail search keywords. The post is aimed at people producing and selling software, but the ideas and principles are applicable to any website…