correnation trading

Here is a pdf, requires registration http://forums.babypips.com/free-forex-trading-systems/13647-correlation-trading-no-charts-required-9.html

This one is related, for SnP and EU http://www.forexfactory.com/news.php?do=news&id=184237

Someone finally understood it.. http://www.actionforex.com/articles-library/forex-articles/correlation-in-the-forex-market-2009050586722/

Indicators in tsd http://www.forex-tsd.com/indicators-metatrader-4/177-correlation-indicators.html