7 Great Viral Marketing Campaigns

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OraBrush | Diaries of a Dirty Tongue

With $500, college student Jeffrey Harmon put together a quirky video to promote Dr. Bob's tongue cleaner. He titled it "How to Tell if You Have Bad Breath," and with a small marketing spend, the video quickly became viral. Two years since its launch, it has more than 15 million views. Then, by leveraging fans of the first video, Harmon launched "Diary of Dirty Tongue," a weekly video featuring Morgan, a foul-mouthed tongue with no social skills.