One of the most important decisions to make as a trader or investor is which stock charts to use. There are several free charting sites which are available, including stockcharts.com, bigcharts.com, and finance.yahoo.com. You will also be able to chart stocks at your brokerage website, such as TDAmeritrade.com. If you are an occassional chart user, there is no need to pay for a service. But if you are serious about investing or trading, or if you want to advance your knoweldge and skills in reading charts, you will want to use a charting program that gives you high quality information and graphics and has more advanced features.
Dr. Charles Schaap's choice for stock charting is TeleCharts.
"I've been using TeleCharts for 11 years, and I wouldn't trade without it. In my opinion, it's the best charting software for stocks." (Dr. Schaap)