How lasting the impact of social media will have is yet to be determined, but one thing for sure, it has turned the chain of influence upside down. Today the reader, the lowly reader, that presumably passive consumer of all the great insight handed down by the reporter, confirmed by the analyst, attested to by the reference customer—this reader, I say, has now become the writer! Except it is not a reader/writer. It is reader/writers at large, many readers, the wisdom (or madness) of crowds. We have embarked upon the world's largest and longest cocktail party, and every issue imaginable is up for grabs.

Paul Gillin, Geoffrey A. Moore (2009), The New Influencers: A Marketer's Guide to the New Social Media. p. vii