After an attention-grabbing half-hour delay, Facebook's history-making stock market debut saw the social networking company's shares surge higher in predictably frenetic trading. Facebook shares [FB 40.02 2.02 (+5.32%) ] finally opened at $38 but the price didn't last long, gaining 11 percent as investors scrambled to get a piece of the company that started in a Harvard dorm room and became, with Friday's trading, a more than $100 billion behemoth. Some 82 million shares changed hands in the first 30 seconds and volume passed 1 billion after four minutes. The opening was marred by a lengthy delay that had traders ... (full story)