How safe are "green" cleaners?

Here is a scientific article followed by Dr. Mercola's take.  Interesting - and something all consumers should be aware of.
I do some marketing on the side for a wellness company that has been producing safe, non-toxic cleaners for over 20 years - and I've been very happy with the results.  I am allergic to bleach, and cannot use it in my home - but my home is as clean as any other due to these great products.  If you are going to switch to green, please contact me so I can tell you more about the products that I use.
http://articles.mercola.com/sites/articles/archive/2008/05/24/how-safe-are-green-cleaning-products.aspx?source=nl