Here's a list of the top 3 (and top 10 at the link below) viral campaigns of all time (of course till the time this post was made, according to Times Online)
Nike
Creative from Framfab, Denmark.
Framfab won two Gold Lions on the Cannes Lions Festival for the campaign. The other winning clip was The Chain, a user generated initiative, consisting of more than 500 user uploaded soccer sequences edited together as one long clip of soccer celebration.
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Agent Provacateur
Kylie Minogue rides a velvet bucking bronco wearing nothing but lingerie from Agent Provocateur. (you need to be over 18 years of age to watch this! Yipee!)
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JOHN WEST SALMON
A John West employee fights a grizzly bear off to land a fish – just to go that extra mile for quality. Obviously, it is set up, but with costumes from the Jim Henson Creature Shop it looks surprisingly real, until the bear starts throwing Kung Fu tricks at the “fisherman”.
An unusual viral, it created more than 300 million views and has won ten awards, including Best Commercial of the Year from British Television Advertising Awards and a Gold Lion at the Cannes Lions Festival, 2001. Executed by Leo Burnett, the viral brings together the best of advertising and content in one.
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get the whole post here