Social Media Marketing refers to the process of obtaining relevant online traffic via social networking sites e.g. Facebook, Twitter, YouTube. Social media is the entire social networking community as a whole. A social networking site is one special aspect of social media like Twitter - it is designed to let people share short messages. Facebook on the other hand is a full-blown social networking site that allows for sharing videos, photos, events, thoughts and more.
Most social networking platforms have built-in data analytics tools, which enable companies to track the progress, success, and engagement of ad campaigns. Marketers can access and utilize social networking site's in-depth analysis of its members resulting in a more refined target audience.