This document discusses measuring return on investment (ROI) for social media marketing in Africa. It outlines different types of social media and challenges in measuring ROI. Companies that are highly engaged in social media see greater business impacts, with an average 3-5% rate of return. Case studies on Safaricom in Kenya and Old Spice show how social media can reduce call center inquiries and increase engagement. Metrics for measuring success include online performance, consumer buzz, database growth, and strengthened customer relationships.