Like to get a quick impression of how various stocks, sectors and ETFs are doing today or in the past year? Check out these heat maps, which show through colours - red down, green up - how markets have been doing. On most, you can drill down by clicking on individual trading symbols to get a lot more detail.
FinViz.com - S&P500 grouped by sector, Foreign Stocks (including Canadian) Traded on US exchanges, US-traded ETFs. Data includes performance today to 1-year, P/E, P/B, P/S. Dividend Yield, Earnings
StockMapper.com - NYSE Euronext stocks (which includes 66 largest Canadian stocks), S&P 500, World Regions. Data includes today's percent change, latest news
SmartMoney.com - US stocks "over 500". Data includes daily percent price change organized by sector.