I don’t spend much time optimizing this site, mostly because I don’t care how it ranks for anything other than my name, but I do pay attention to SEO for other sites.
Joost de Valk is a fantastic resource for WordPress SEO strategy. The best part about Joost (pronounced Yoast, like toast) is that he doesn’t fill his posts, presentations and talks with vague garbage. He tells you step by step how to efficiently help yourself rank better in search.
The other day he posted a presentation on common sense practices for Content Marketing and SEO. I highly recommend you check it out. And then, just peruse his archives for awesome stuff.
He also write the absolute best SEO plugin for WordPress.
Download it, set it up, and be happy.