Facebook is paying $19 billion in cash and stock for a company that employs just 55 people.
RELATED: Facebook buying messaging app WhatsApp for $16 billion
WhatsApp is one of the most popular messaging services in the world, attracting more than a million new users daily. Here to tell us what's up with WhatsApp is Take Two regular Devindra Hardawar, National Mobile Editor for VentureBeat.