GM announced before the IPO they were pulling their fb ads because they didn’t bring in any business for them. That’s about all fb has to offer in the way of revenue, advertising, isn’t it?
FB can't bring in ad revenue because most users use cell-phones to access, and they don't display ads. Worse, most users via the net won't click on an ad, or buy via one.
JMHO, FB isn't worth a fraction of it's current 'value' and it's stock price will shrink rapidly. Look at Facebook partner Zynga. Trading was stopped twice on Friday due to plunging value - closed at an all-time low.
My bet, trading on both Zynga and FB will be a wild ride to major losses.