Firms' values fluctuate over time. How much is Facebook "worth" today? Has the firm's value gone up or down since this writing? Why? Was investing in Facebook at IPO a move that paid off or that has resulted in losses? Look for business press stories and analyst quotes at or shortly after the time Facebook went public. Did analysts get it right or wrong? Why? Looking back at how Facebook has performed, what are some key takeaways that you might use as a manager when sizing up firms, competitiveness, and technology evolution?