A website can only cause four things to happen once somebody sees it, he argues: they click through to where you wanted them, they hand over permission to contact them, they buy something, or they tell somebody else. Anything else a page does is decoration, and the post making that case is the sharpest thing in the set.
He follows it with a title stating that traffic is not the point at all, which is an unusual position for a blog otherwise devoted entirely to getting some.
The technical posts are competent and cover the expected ground: meta tags, directory submission, keyword density kept in proportion, and designing a site while imagining how a crawler moves through it.
One post lists ten mistakes that cost people their rankings, which helps more than another list of things to do.
Fifteen posts, none of them personal. Read the four things one before you touch your own pages again.