I just came across this detergent shopping guide from Organic Consumers and it's so important that I knew I had to pass it along. It has a list of all of the soaps/detergents that use 1,4 dioxane, a known carcinogen that can cause a host of health problems.
This seemed like a good opportunity to pass along a couple of other good resources that are available online.
The Environmental Working Group Shopper's Guide to Pesticides
The Environmental Working Group Safety Guide to Children's Personal Care Products
The Environmental Working Group Shopper's Guide to Safer Sunscreen
The Food and Water Watch rBGH-free Dairy Guide (search by state)