Do free giveaway schemes work?

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As I was trundelling through the vast world that is the internet, I came a cross this website: http://www.freewebs.com/freesonyplaystation3/ It seems like a good idea and I have read of loads of people and seen their pictures with their free gifts, but is it all a con? As my dad once said you dont get anything in this world for nothing. But it seems pretty legit, have any of you got a free gift through a scheme like this before? Please tell me your thoughts on this....... http://www.freewebs.com/freesonyplaystation3/