BigCharts: Stock Charts, Screeners, Interactive Charting and Research Tools
"...comprehensive and easy-to-use investment research Web site, providing access to professional-level research tools such as interactive charts, quotes, industry analysis and intraday stock screeners, as well as market news and commentary. These tools combine with a graphical interface and our intuitive navigation to make your research experience productive, entertaining and fun. Best of all, BigCharts is a free service..."