The document discusses evaluating the return on investment (ROI) of social media campaigns. It notes that while metrics like followers, shares, and comments are measurable, what really matters is evaluating outcomes and impacts against the budget. The document provides examples of measurable outcomes like a £300k sales increase from trackable links that resulted in an ROI of 14:1, and recruiting 25,000 new users. It stresses that evaluation is more important than just measurement, and advocates defining specifics like sales increases, reputation improvement, or customer service speed that the campaign aims to impact.