http://www.informedtrades.com/ A lesson on how to trade the Bollinger Band Indicator for day traders and investors using technical analysis in the stock, futures, and forex markets.
The link that I refer to in the video on standard deviation is here:http://en.wikipedia.org/wiki/Standard_deviation
The link that I refer to on Bollinger Bands is here: http://www.informedtrades.com/tags/index.php/bollinger bands/