1) The document discusses advanced email and social media integration strategies. It outlines beginner, intermediate, and expert tactics for linking email marketing with social networks. 2) Some basic tactics include social reminders, welcome messages, and sharing content with your network. More advanced tactics involve using social proof like the like button, recommendations, and influence scoring. 3) Integrating email and social media can expand audiences and leverage networks according to principles like reciprocity and social proof. The document recommends several books and resources for further information on measuring multichannel marketing funnels.