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Facebook bought WhatsApp $19 billion

In just two months since Facebook dropped $19 billion to buy WhatsApp, the five-year-old mobile messaging app on Tuesday announced its active user base has grown to more than half a billion people. On February 17, the day it was acquired by Facebook, the company said it...

World's most richest tech billionaires

1. Bill GatesTotal worth: $59billion Gates is the former chief executive officer and current chairman of Microsoft. He founded Microsoft with Paul Allen. Gates is consistently ranked among the world's wealthiest people and was the wealthiest overall from 1995 to 2009, excluding...