
I know this happened a while back, but just now I checked the link and it made me smile. First of all, I think that Burger King "Sacrifice your Facebook friends for a Whopper" was a truly original and funny campaign, scarce commodity nowadays. Give up ten of your so-called Facebook friends and earn a free burger. Tell me this is not making you at least crack a smile. The loose connections so widely spread all over Facebook are called friends, if Facebook would use a word like contacts for example, then a sacrifice your contacts would not be funny at all.
Unfortunately Facebook forced Burger King to terminate the whole thing over some privacy issues and that's too bad, cause c'mon it is funny. Still, I think it's gonna be a while till we see something as simple, free and absolutely hilarious. Good for you Burger King and also you must admire the perfect ending. Here it is http://www.whoppersacrifice.com/
As an afterword I want to add that who knows which side of this app was more receptive to the marketing message. The one who was willing to give up friends for a value of a sandwich or the one who got the message that this burger called Whopper is more valuable than his or hers friendship. LOL. Perfect execution.