The document discusses social storytelling and highlights data from Mary Meeker's 2017 Internet Trends report. It shows that people spend over 5 hours per day on social media on average. It also outlines that social advertisers measure success through engagement, amplification and revenue. The top challenges for social media marketing are identifying the brand's promise, discovering people's stories, planning efforts, meeting people where they are, distributing on the right platform, and measuring and spending accordingly.