Hi...
I personally would consider two categories of reversal indicators: Technical Analysis ( Price Oscilators ) indicators, and Support/Resistance areas which can be determined in a variety of ways depending on your personal goals and trading style. The Technical indicators I like to use to demonstrate divergence from price action are the traditional: Williams %R, Slow Stochastic, and RSI. These definitely help determine the end of a trend ( even micro-trends on a 5 or 30 min. chart) or an area where the market will reverse. However, for me, a more important method of attempting to spot reversal comes from determinimg "stone wall" areas of support and resistance using a Fibonacci retracement grid superimposed onto a candlestick chart. Lots of members here like to use a variety of methods of this type. There are other effective ways of determining these pivot points, and for me there is so much info in Moneytec on these different approaches I am hardly qualified to vouch for or discuss them. But in terms of tech. analysis and good reversal/divergence indicators, the ones I mentioned are very, very helpful. Larry Williams, creator of the Willimas %R has an excellent website that helps explan this study far better than I ever could:
http://www.ireallytrade.com