Great Matt Cutts' SEO example

Matt (Google search spamfighter and celeb) provides a nice little case study on how to do good SEO. I like Matt's comment: "Look for a progression of niches so that you start out small or very specific, but you can build your way up to a big, important area over time." Take a look at Writing Useful Articles that Users will Love. Or look at his category Google/SEO.