The fortune of Mark Zuckerberg, the co-founder of the world's largest social-networking company Facebook, fell to USD 14. billion on Tuesday from USD 16.2 billion on Friday, as shares dropped 9.6 per

In its three days of trading, Facebook's stock has dropped 18 per cent from its $38 issue price.

For the thousands of investors that bought at the IPO, that's bad enough, but one analysis of its ear

The US tax authorities are in for a major windfall from Facebook chief Mark Zukerberg, as the upcoming IPO of the social networking giant could make him pay in taxes as much as USD 903 million (about