BusinessWhat Turns An Idea Into A Trend?FacebookXLinkedInEmailLinkGiftFacebookXLinkedInEmailLinkGiftGift this articleContact us:Provide news feedback or report an errorConfidential tip?Send a tip to our reportersSite feedback:Take our SurveyNew WindowFacebookXLinkedInEmailLinkGiftBy Diane BradyMarch 20, 2000 at 5:00 AM UTCBookmarkSaveLock This article is for subscribers only.By Malcolm GladwellLittle, Brown 279pp $24.95