The Sinewave Indicator was created by John Ehlers (Rocket Science For Traders pgs 97-99) and this is a few indicators in one. Simply put it is a leading indicator which you don't see too many of those these days. If the blue line crosses over the red line then within the next few bars the price will start an uptrend and if the blue line crosses below the red line...
The Even Better Sinewave Indicator was created by John Ehlers (Cycle Analytics For Traders pgs 161-162) and this indicator works well when the stock is in a trend mode. It will let you know how long to stay with a trade and it works best with a trend confirmation but it can also work on it's own fairly well. Buy when the indicator line is green and sell when it is...