[giancarlostoro]

I figure this isn't the question others want to discuss, but I too wonder the same. I think I used WhatsApp for a short period of time, until the point they asked me for money. Since then I haven't looked back. Now I am left wondering where their revenue comes from.

[BozeWolf]

It probably doesnt need to generate any revenue (in dollars, perhaps when measured power it does). Facebook does not really want it to be profitable, at least not as long as the communication is c2c. Facebook is only profitable because of its b2c parts!