We've agreed to acquire WhatsApp

Where is the source for that $19 billion figure? I don't see it in the post, and it sounds ridiculously high to me.

EDIT: For reference, the previous title was "Facebook Buys Whatsapp for 19 Billion Dollars"

EDIT 2: I see now that there's a TechCrunch article [1] claiming a "$16B in cash and stock" figure. That article cites a regulatory filing [2], which states:

> options to purchase WhatsApp capital stock will be cancelled in exchange for an aggregate of 183,865,778 shares of Parent’s Class A common stock (valued at $12 billion based on the average closing price of the six trading days preceding February 18, 2014 of $65.2650 per share (“Specified Price”)) and $4 billion in cash to existing WhatsApp securityholders, subject to certain adjustments such that the cash paid will comprise at least 25% of the aggregate transaction consideration. In addition, upon Closing, Parent will grant 45,966,444 restricted stock units to WhatsApp employees (valued at $3 billion based on the Specified Price)

Amazing and somewhat dizzying that it's actually that high.

[1] http://techcrunch.com/2014/02/19/facebook-buying-whatsapp-fo...

[2] http://www.sec.gov/Archives/edgar/data/1326801/0001326801140...

Funny, there's a missing space between "for" and "Internet.org", and someone already bought the domain:

http://forinternet.org/