This document discusses social media and return on investment (ROI). It summarizes arguments that question whether social media provides ROI, including statistics showing low referral rates from social media to sales. However, it also provides counterarguments that social media builds long-term advocacy and sales. It notes social media is the most trusted advertising source, increases effectiveness of other marketing, and is important for customer service, PR and issues management. While not driving immediate sales, social media engagement over time can increase spending by 20% and turn detractors into loyal customers. The document concludes integrated social media combined with other channels has higher impact than any single medium alone.