Social Media Marketing capitalizes on the unique power of voluntary, easy and FREE word-of-mouth of the social crowd, BUT it's more than that only:1. It's also EXPOSURE, realising brand awareness through the sheer existence on social platforms and the accompanying forms of advertisements (company and fan pages), sales incentives and call to actions (embedded e-coupons, click-through links, quotation forms).2. It also offers the right concentration of target customer demographics in one place for targeted and large-scale PAID advertisement using different social media ad-models combined with profile-targeting techniques. It's not only word-of-mouth.