watch the TED talk video below and answer question 1-4

Can Ad &  PR professionals harness the power of social media? What aspects of social media are strategically good and bad? What can Ad & PR professionals learn from understanding viral memes? What are potential ethical problems with using social media for Ad & PR? How can professionals improve this? Given the unruly nature of social media, how would you maintain control of your organization’s image or message (if you were working as a PR professional)? Does social protest and civic engagement work better because of social media? Maybe yes, maybe no. Why is this? Does social media present an ethical issue in social protest and civic engagement?