1) The document provides 7 rules for using social media effectively: be ubiquitous, don't treat it as advertising, be a timely resource, speak to different audiences, nothing replaces face-to-face interaction, respect social media etiquette, and build trust.
2) It discusses how social media is now everywhere and how people use various platforms like Facebook, Google+, LinkedIn, and Twitter.
3) The document emphasizes building trust through engaging with others authentically rather than just self-promotion, and highlights the importance of face-to-face interactions to foster relationships.