The Stochastic Oscillator is:

* a momentum oscillator that can warn of strength or weakness in the market, often well ahead of the final turning point.
* based on the assumption that when a stock is rising it tends to close near the high and when a stock is falling it tends to close near its lows.

The Relative Strength Index (RSI) is a popular oscillator developed by Welles Wilder, Jr (see his book, New Concepts in Technical Trading Systems). RSI measures the relative changes between higher and lower closing prices, and provides an indication of overbought and oversold conditions.

The second profitable indicator is Directional Movement Index 

The Directional Movement Index, DMI, is an effective and frequently used trend indicator. This system was designed by Welles Wilder Jr. and is made up of three lines:

After learned about last article on Forex Basic, now we are starting to learn about some forex indicators from the technical method, I will not write all of them because there is too much indicators but I'll just write here the simple and profitable enough indicators.