Search Engine Watch’s Eric Enge writes that the so-called ’80-20′ rule – promulgated by sociologist and economist Vilfredo Pareto to say, largely, that 80 percent of effects are caused by 20 percent of causes – is applicable to search engine optimization (SEO).

Enge writes that the 80-20 rule is particularly useful to gaining an understanding of the idea that "the easiest way [to differentiate a website from its competitors] is to do the hard stuff really well." Tasks like creating lists of potential target sites for link building are time-consuming and difficult, and Enge says that most search engine optimization (SEO) professionals do not do them. It is this, however, that provides a large advantage to those who do, according to Enge.

High-volume content generation, too, can be a difficult but rewarding challenge to search engine optimization (SEO) professionals, Enge writes. Hiring specialist content providers to churn out large amounts of unique content can stretch SEO staff and budgets, but the results are frequently superb, says Enge.

Search engine optimization (SEO) experts warn against some of the "shortcut" methods to SEO, saying that it can be difficult for a site that takes only the standard SEO measures to rise above the herd.