This is the index that I hang my hat on when making buys and sells. Its comprehensive and gives you a good look at the overall health of the market. Its accelerating and I think its because of QE which is causing inflation beyond what the FED is willing to admit. The debasement of the dollar will continue as long as the FED continues QE. IMHO - I dont see a strong rally happening in the dollar. China is dumping dollars for EUROS and they have a lot of dollars to dump!! A weak dollar means a strong commodities market.
I had to dig to find this article. There are countless older articles that back up my belief that the PRC is dumping dollars for things like commodities, euro debt etc. I dont know what to believe right now.