Social media use by businesses hobby, rather than social media containers such as Google+, Facebook, and Twitter. PR departments face significant challenges in dealing with viral negative sentiment directed at organizations or individuals on social media platforms (dubbed "sentimentitis"), which may be a reaction to an announcement or event. In a 2011 article, Jan H. Kietzmann, Kristopher Hermkens, Ian P. McCarthy and Bruno S. Silvestre describe the honeycomb relationship as "present[ing] a framework that defines social media by using "seven functional building blocks": identity, conversations, sharing, presence, relationships, reputation, and groups". Social media marketing becomes effective through a process called "building social authority". One of
Nick Bilton days and its four founders—Evan Williams, Jack Dorsey, Noah Glass, and Biz Stone—who are portrayed as "mediocrities, narcissists and mopers who seem to spend as much time on scheming, self-promotion and self-destruction as on anything else", according to Tim Wu's review in the "Washington Post". It was on the "New York Times" bestseller list and was voted Best Book of the Year on "The Wall Street Journal" Reader's Choice. The book was optioned by Lionsgate and is currently being turned into a TV series. Published in May 2017, Bilton's most recent book, "American Kingpin", tells the story of the Silk