Turning guest blog posts into a formulaic strategy, Rand Fishkin delves into a step-by-step method that he believes can return "exceptional value" for other sites without taking away from the marketer's. Finding a topic means being well read -- know what other write about. So aside from searching for other posts in the niche topic, he suggests reviewing blog directories and metric tools, such as Domain Authority from Open Site Explorer and Page Authority, and MozRank. His list of tactics might seem obvious, but most of the advice goes beyond basic tactics.