I regularly review for NCTM. If I do not like something or if I think it isn't a good resource I give my opinion. One of my recent reviews on a software package was very negative.
I have found the NCTM reviews, which are in fact reviews by people like you and I, to be solid. It is not a question of endorsing a product or trying to ban a product. The reviews are opinions of practioners who have used the product. --
Karen Dee Michalowicz Adjunct Faculty Upper School Mathematics Chair George Mason University The Langley School Fairfax, VA McLean, VA