Here is a short Bollinger Band tutorial I dug up from the archives at the Market Club membership site. A very useful tool indeed. Lots of the pros use these. In fact, one of the bloggers I follow zstock7.com uses them frequently for nice profits. A high percentage winner.
After this go over and check out some free training videos from INO TV in the sidebar. A great product with a wealth of training information at a very reasonable price. This last Sunday I spent some time there watching candlestick analysis I and II, a fibonacci lesson and some charting videos. Just scrached the surface, there are loads of hour and ninety minute lessons.
http://club.ino.com/trading/bollinger-bands/