Until recently, it would have been a safe bet that no 23-year-old in the world had ever turned up his nose at $3 billion. But that's exactly what Evan Spiegel, the co-founder and chief executive of messaging service Snapchat, did when Facebook offered to buy his company.Citing unnamed sources familiar with the offer, The Wall Street Journal reports Facebook offered Snapchat an all-cash deal of $3 billion or more. At the time of its last funding round,...
