Social media are interactive Web Internet-based applications. User-generated content, such as text posts or comments, digital photos or videos, and data generated through all online interactions, and considered the lifeblood of social media.
Social Media Marketing is the use of social media platforms and websites to promote a product or service. Although the terms e-marketing and digital marketing are still dominant in academia, social media marketing is becoming more popular for both practitioners and researchers.
Social media – Wikipedia https://en.wikipedia.org/wiki/Social_media