The document discusses social media marketing ROI and rules for creating CEO-friendly social media campaigns. It defines ROI as gains from investment minus the cost of investment, divided by the cost of investment. It notes that increases in things like social media mentions, likes, and positive opinions are not direct financial metrics. The document provides an example ROI calculation for a company blog, estimating a 552% ROI. It emphasizes establishing baselines and monitoring over time to identify patterns and correlations between social media activities and transactional data or sales.