FB is one of those stocks I would never want to short
Facebook was IPO-ed by big guns such as Morgan Stanley (MS), JP Morgan (JPM), and Goldman Sachs (GS). it was valued at $90B. these giant institutions will milk this cow until it reaches to 200$. too much money on the line.
I heard FB dominates the advertisement space in mobile devices (80%).
probably, they're going to charge 10 cents each every time one sends a message in Whatsup