[farrel]

Didn't Facebook attempt to sell 'Gifts' for $1 back in 2007? I recall they even got Susan Kare to design them.

[jrockway]

Doesn't this make more sense, though? It's a combination of paying for advertising and paying for application features, both well-tested business models. Paying for random fake things that annoy your friends, however, is not as well-tested.