The two books in Deirdre Imus' series, Green This, are both very informative.
Vol. 1: Greening Your Cleaning I'm going to have to buy this one to keep on hand as a reference. She categorizes by room in the house and within each room gives specific tips, products, homemade recipes, etc for cleaning various surfaces. She also gives great background info on why it's important to detoxify our cleaning routines.
Vol. 2: Growing up Green: Baby and Child Care I didn't read this one all the way through (library books are due back today and can't be renewed this time around!) but I will definitely check it out again when I have another one on the way. What I did read was helpful in understanding how the environment affects our children (diseases & other medical conditions, like asthma & ADHD for example). One reference I found particularly cool was her list of websites for companies that sell natural (non PVC, pthalate, etc) toys.
I will be adding these to the Gidget Goes Home aStore if you'd like to get a copy!