Stockcharts.com has tons of charting tools but in the public chart lists I have found one that has been very helpful at looking at the general market, ETF's & International markets so I advice browsing thru these charts a couple of times a month, Simple Systems - Gary Berkley - Public ChartList - StockCharts.com
Other public charts are listed here Public ChartLists - Free Charts - StockCharts.com
Other public charts are listed here Public ChartLists - Free Charts - StockCharts.com