This document discusses the pros and cons of using social media for link building and marketing purposes. It provides tips on finding influential social media sites and leaders, developing engaging content, measuring ROI, and asking the right questions to determine the best social platforms to use. Examples are given of effective tweets and metrics that marketers can track in social media. Overall, the document offers strategic advice on leveraging social media networks, content, and influencers to build links, traffic, and brand awareness.