Facebook Buying WhatsApp For $19 B

Jan Koum and Brian Acton have become overnight billionaires, courtesy Facebook buying their startup WhatsApp. However, things were not so great for the two till a few years ago. While Acton, who was looking for a job, faced rejection at Facebook and Twitter; Koum used to queue up for free food stamps.

Brian Acton will now finally join Facebook, which rejected him a job four and a half years ago. In a tweet on August 4, 2009, he wrote, "Facebook turned me down. It was a great opportunity to connect with some fantastic people. Looking forward to life's next adventure.