Free Link Analysis Tool

As much as Google’s biz model is making information useful and accessible my biz model is making learning and doing SEO as cheap as possible (while still having a functional business model that allows me to continue to learn). I do realize that a book alone might not do that as well as I would like, and that is a large part of the reason I want to create many pieces of free software and am interviewing many various people in the search field. I want to give people a variety of ways to learn, and a variety of tools which help them save time during the SEO process.