Elf Yourself may not have been the first campaign to let users upload a photo of themselves onto something sort of silly.

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The song has inspired thousands of people around the world to upload videos of themselves dancing along to the first 30 seconds of the track - up to 4, 000 a day are currently being put onto YouTube, according to the website.

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When one of my old middle school teachers discovered Facebook, one of the first things he did was to upload old photos of his prior students.

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