Facebook exodus: Nearly half of young users have deleted the app (cnbc.com)

I'd be really interested to know how you got to "$12/person/year".

I would be interested in the values for other platforms. I think it builds a more tangible argument when explaining the hidden costs of using various "free" products.

Join the company and you will see for yourself. I'm not going to explain how a business empire works over a chat message.

Don't disagree with your views on Twitter but if you think of Twitter as only mutual high-fives then I'd be interested in your point of view on Instagram. :)