BITSTAMP:BTCUSD Bitcoin / Dollar
I've found triangles and trend lines to be rather good indicators, although you do have to be careful which ones you pay attention to. Some are not based on much while others are a lot more well-defined. For instance, the descending triangle from the high last year broke out upward from ~450 and that was the start of the last major bull move. We've had a few more since then that have been good indicators.