Social media's role in helping businesses is significant. It facilitates communication with customers, enabling the melding of social interactions on e-commerce sites. Its ability to collect information helps focus marketing efforts and market research. It helps in promoting products and services, as it enables the distribution of focused, timely and exclusive sales and coupons to would-be customers. And it can assist in relationship building, such as through loyalty programs linked to social media.
Social media are interactive computer-mediated technologies that facilitate the creation and sharing of information, ideas, career interests and other forms of expression via virtual communities and networks. The variety of stand-alone and built-in social media services currently available introduces challenges of definition; however, there are some common features: