This document discusses various methods for measuring social media performance. It describes early key performance indicators from 2010 such as buzz, popularity, media mentions, and follower counts. Later measures included engagement, sentiment, interactions, and conversions. The document outlines tools for measurement including Google Analytics, Facebook Insights, and Twitter Analytics, which provide data on metrics like impressions, likes, retweets, and demographics. It also discusses network analysis to map influencers and information flow through social networks.