The concept and terms have been used, since 2004, as a descriptor for an emerging sociological and economic trend of "people pursuing amateur activities to professional standards", as described by Demos, a British think tank, in the 2004 book The Pro-Am Revolution co-authored by eclectic writer Charles Leadbeater.
Charles Darwin | Charles Dickens | Charles, Prince of Wales | Ray Charles | Charles II of England | Charles I of England | Charles Lindbergh | Charles de Gaulle | Charles II | Charles | Charles I | Prince Charles | Charles V | Charles Scribner's Sons | Charles Aznavour | Charles University in Prague | Charles Stanley | Charles Bukowski | Charles Mingus | Charles Ives | Charles Bronson | Charles Babbage | Charles III of Spain | Charles Cornwallis, 1st Marquess Cornwallis | Charles Baudelaire | Charles Sanders Peirce | Charles River | Charles Manson | Charles Laughton | Charles Dutoit |
In this episode the pros and cons of Wikipedia as well as other Web 2.0 websites were discussed by Jimmy Wales, Larry Sanger, Andrew Keen (writer), Charles Leadbeater (writer) and Robert McHenry (former editor-in-chief of the Encyclopædia Britannica).
He was defeated by George Arundale, one of Charles Leadbeater's close allies, in a campaign that Wood later described as unfair and questionable.