The document discusses improving the effectiveness and efficiency of marketers and their agencies through social media. It notes that most early social media efforts were uncoordinated and siloed, but companies have increasingly moved to a "hub and spoke" model with centralized social media resources. It also discusses how major social networks like Twitter have helped marketers develop "always on" strategies for social media. Finally, it outlines key principles for successful social media strategies, noting that large organizations focus on areas like centralized coordination and proficiency across business units.