New Theory Explains What Makes YouTube Videos Go Viral

Blend It YouTube video
(Image credit: YouTube | Blendtec)

More than 10 million people have watched a YouTube video of an iPhone being pulverized in a blender. It's actually a commercial for Blendtec — a company most viewers had probably never heard of. But with the viral clip, Blendtec let social networking spread its name and message rather than paying for a mass advertising campaign. And it worked like a charm.

"Viral-produced movies" are the new holy grail of advertising, but they're tough to pull off. Only the fittest among them can overcome the slight annoyance people feel when they realize a video they enjoyed was actually an ad — and yet compel them to share it with friends anyway. As Brent Coker, a marketing professor at the University of Melbourne in Australia, says, "Ensuring the success of a viral-produced movie is still largely hit-and-miss … babies, pranks, and stunts seem to have great success on some occasions, but turn into catastrophic failures on others." [See video examples]

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Natalie Wolchover

Natalie Wolchover was a staff writer for Live Science from 2010 to 2012 and is currently a senior physics writer and editor for Quanta Magazine. She holds a bachelor's degree in physics from Tufts University and has studied physics at the University of California, Berkeley. Along with the staff of Quanta, Wolchover won the 2022 Pulitzer Prize for explanatory writing for her work on the building of the James Webb Space Telescope. Her work has also appeared in the The Best American Science and Nature Writing and The Best Writing on Mathematics, Nature, The New Yorker and Popular Science. She was the 2016 winner of the  Evert Clark/Seth Payne Award, an annual prize for young science journalists, as well as the winner of the 2017 Science Communication Award for the American Institute of Physics.