This document provides an overview of advertising and marketing in social media. It begins by explaining how customers initially joined social networks and started sharing opinions, which led brands to recognize the need to engage with customers on social media. It then discusses social media advertising, which focuses on generating traffic and awareness, and social media marketing, which aims to increase visibility and promote sales. Key components for successful social media campaigns are outlined, including understanding channels, setting goals, capturing user data, measuring results, and continually learning.