The document discusses measuring social media return on investment (ROI). It notes that over 50% of companies are unsure about their ROI from platforms like Twitter and LinkedIn. While social media is often seen as free, it actually requires investments of technology, employees, and time. The document examines different social media ROI metrics around exposure, engagement, and measuring the value of actions. It concludes that social media metrics must be tied to business goals and that relating costs like employee time to results can reveal a formula for assessing investment.