Lead strategist for Netconcepts, P J Fusco writes in an article for ClickZ, that the “Long Tail” principle works contrary to how most online brands prioritize their search engine marketing (SEM) strategies. While online retailers tend to optimize their sites for the 20 most popular keywords and keyword phrases that drive the most traffic, they would also do well to target the millions of unbranded niche phrases at the shallow end to complement those high-traffic branded search referrals. PJ goes on to say…