Social media marketing is the process of gaining website traffic or attention through social media sites.

Social media marketing programs usually center on efforts to create content that attracts attention and encourages readers to share it across their social networks. The resulting electronic word of mouth (eWoM) refers to any statement consumers share via the Internet (e.g., web sites, social networks, instant messages, news feeds) about an event, product, service, brand or company. When the underlying message spreads from user to user and presumably resonates because it appears to come from a trusted, third-party source, as opposed to the brand or company itself, this form of marketing results in earned media rather than paid media.