Mark Zuckerberg is about to reach another level of rich

Facebook will soon be worth more than ExxonMobil -- and Mark Zuckerberg will be richer than the Koch brothers. The social-networking giant's stock soared Wednesday after its second-quarter revenue rose 59.2 percent, to $6.4 billion, crushing the consensus estimate of $6 billion, as its computer-loving, smartphone-addicted user base continues to carpet ever-wider sections of the...