Expedia (NASDAQ:EXPE) stock plunged 15% after disappointing bookings numbers and the departure of CEO Peter Kern. The travel site earned $132 million, 92 cents per share fully diluted, on revenue of$2.89 billion during the quarter. This compared with net income of $177 million,$1.11 per share, and revenue of $2.61 billion a year earlier. However, the departure of Kern, who had been CEO for four years, spooked investors the most. Expedia was due to open this morning at about$134 per share, a market capita ...