Traditional search engines are no longer the only method of getting traffic to your website. Social bookmarking tools, blogs and social networks are gaining popularity. A story on a popular social media channel can bring more traffic to your site than a high search engine rank. This is where Social Media Optimization (SMO) comes in.
SMO is a form of marketing, through word of mouth, that uses social media tools like social networking sites, social bookmarking, and media-sharing sites. SMO is about giving interesting and original content that makes people visit your website often. SMO should not be confused with Search Engine Optimization (SEO). SEO is marketing to search engines for a better search engine rank while SMO is maintaining direct personal contact with your target audience.