Email marketing is the act of sending a commercial message, typically to a group of people, using email. In its broadest sense, every email sent to a potential or current customer could be considered email marketing. It involves using email to send advertisements, request business, or solicit sales or donations.
Social media marketing is the use of social media platforms to connect with your audience to build your brand, increase sales, and drive website traffic. This involves publishing great content on your social media profiles, listening to and engaging your followers, analyzing your results, and running social media advertisements.