"Social Media refers to all media or platforms that provide their registered users with a digital platform for communication, publishing and networking. Social networks and social networking sites fall under this definition. Another concise definition would be: (Compare the book "Social Media Marketing", O'REILLY publishing house): "The terms social networks and social networking sites are used to describe websites where users can create personal profiles and enrich them with their interests, photos and biographical data. Social networks help their users to network, share news and build relationships with each other."