The document discusses justifying investments in social media for sweepstakes promotions by outlining key performance indicators (KPIs) to measure such as cost per email, cost per visit from social referrals, cost per lead, and growth in social media followers and engagement from the promotion. It provides examples of tools that can help track KPIs for the sweepstakes campaign on social media and the website. The presentation emphasizes using data and metrics to demonstrate the return on investment from social media for sweepstakes.