Anyone who knows me has heard me talk about the infamous “f-factor,” a brilliant term originated by trendwatching.com. “That’s ‘F’ for friends, fans and followers who influence a consumer’s buying decision. The F-factor is a stage toward the end of the SEO optimization cycle. It is the sharing and re-sharing that precedes your blog post (keyword inputs, personal social sharing of the post and social bookmarking, which is a topic for another blog post).