When WhatsApp launched in 2009, no one predicted that it would grow to be a multibillion-dollar company. However, Facebook on Wednesday said that it planned to buy the hugely popular social ...

Facebook made a breathtaking move yesterday, buying messaging app WhatsApp for $19 billion. Even for Facebook, that's a staggering amount to pay for a company with estimated 2013 revenue of only $ ...

Facebook stunned the tech world this week when it announced that it was paying $16 billion up front along with $3 billion in vested payments to buy WhatsApp, the incredibly popular messaging app ...

Facebook agreed to buy WhatsApp in February 2014 for over $19 billion in stock, and the price had gone up to $22 billion by October when the deal closed, thanks to Facebook's rising stock price.

Who the heck uses WhatsApp? Apparently, over 450 million people a month. I guess that somewhat explains why Facebook is spending a whopping US$16 billion—half the market cap of Twitter—to ...