clipped from tbm.thebigmoney.com

attending to the ups and downs in the Dow won't tell you much about the current financial crisis. Ours is a crisis of credit: Financial firms are unwilling to lend to each other (at all-but-exorbitant rates) for fear that borrowing firms may fail or that they themselves may need the cash to fend off their own crisis.

the TED Spread measures credit conditions directly. Bloomberg tracks the TED Spread here. What sounds like second-rate Nutella is actually the difference between the interest rate banks charge each other on three-month loans and the interest rate on three-month U.S. Treasury bills.