The document discusses various approaches to measuring the impact of social media. It proposes looking at social media as conversations and communities rather than just coverage or audiences. It suggests measuring things like popularity, relevance, authority, engagement, advocacy/loyalty, sentiment, and how information cascades through networks. It argues for a holistic and networked approach rather than relying on any single tool or metric. Measurement should account for different objectives and campaign types. Outcomes could include on-site conversions and linking performance data with web analytics.