The Chicago Board of Options Exchange (CBOE) publishes an important indicator - the VIX Index - and it does so on a daily basis. The VIX Index measures the implied volatility in the market. Basically: higher levels of VIX indicate that the market is very nervous, whereas... low levels indicate that the market is more or less not jumpy at all. Almost as if investor's don't really seem to care about risk.
CBOE's VIX Index: Usefool Tool for Investors
Including those that focus on Emerging Markets