I would like to learn more about Industry Groups, for example I'd like to be able to see what percentage of the IG volume each of its members contributes. I'm using several sites to try to learn as much as I can but I'd like to hear recommendations from anyone who has sites or books they like that they recommend as worth reading. Here are the sites I'm currently using: http://biz.yahoo.com/ic/ind_index.html http://www.dbc.com/forms/industry.htx?source=central http://dallasnews.stockgroup.com/industry_list.asp?results=100 http://www.investopedia.com/features/industryhandbook/ http://www.prophet.net/explore/sectorPerformance.jsp?sortBy=1159488000000&orderBy=-1&interval=7&showPercent=false&period=3m http://www.smartmoney.com/sectortracker/?nav=dropTab http://www.timinglabs.com/marketindex/IdxData.aspx http://stockcharts.com/charts/candleglance.php?$IIX,$DOT,$XNG,$NWX,$XOI,$OSX,$DJUSFR,$DRG,$DJR,$DJUSRT,$XBD,$SOX,$XTC,$UTY http://stockcharts.com/charts/candleglance.php?$XAL,$BKX,$BTK,$DJUSCH,$CRX,$XCI,$DDX,$XAU,$HWI,$RXP,$RXH,$DJUSIR http://www.equitytrader.com/structure/ TIA, Mike
