Social Media Marketing (SMM) is a form of Internet marketing that utilizes social networking websites (Facebook, Twitter, YouTube, Instagram, Pinterest and LinkedIn) as a marketing tool. The goal of SMM is to produce content that users will share with their social network to help a company increase brand awareness and customer reach.
One of the key components of SMM is social media optimization (SMO). Like search engine optimization (SEO), SMO is a strategy for attracting new and unique visitors to a website. SMO can be done two ways: adding social media links to content, such as RSS feeds and sharing buttons -- or promoting activity through social media by updating statuses or tweets, or blog posts.
Social Media augments your overall advertising efforts as it serves to reinforce your product or brand to an audience that might have seen or heard of it previously.