Marketing considerations for content strategy vs. content tactics can and will be explained in this video. Breaking Internet marketing down from from complicated to simple, Rand Fishkin gave this talk at the SEOmoz Meetup at the Search Church.
He talks the keystone of SEO: content and how many marketers believe they are making sales directly. Instead content marketing is meant to build familiarity, build likability, and build trust. The only way to do great content is to do it over and over again.