redletterdave writes: "In the weeks leading up to Facebook's massive $100 billion initial public offering, Mark Zuckerberg reportedly told JPMorgan Chase, Morgan Stanley, Goldman Sachs and the other banks involved in the IPO to stop leaking information to the media. Zuckerberg was reportedly unhappy that the banks leaked details about his company's Wall Street debut, including the Feb. 1 date it chose to file its S-1 paperwork with the SEC. Facebook execs are also miffed about the subtle rivalry between Morgan Stanley and Goldman Sachs, which were jockeying to become the lead underwriter for the IPO, the largest since Google's $1.7 billion offering in 2004. The banks are heeding Zuckerberg's warning, urging their employees to keep quiet about Facebook's filing, because disobeying Zuckerberg's wishes could mean getting dropped from one of the most lucrative IPOs in recent memory. The banks stand to make $40 million from their deals with Facebook."