what is the best way and site to get a free iphone?

im sure many people have seen the sites where they offer something for free and all you have to do is complete an offer and refer friends. has anyone done this and got what they wanted? what is the best site to use to get an iphone? what is the easiest way to do it?
sorry but we all cant be rich like princess and have mommy and daddy buy everything for us and we actually have to buy stuff ourselves!