No list that I know of. I know I started with Jessicurl and Devacurl products and have pretty much stuck with them. There is a search function in the upper left corner and I use that to search about products that I'm interested in. If you put in a product name, chances are it will come up with a topic that says whether it's CG or not. Wish I could help more!
2b/3a, primarily use Jessicurl and DevaCurl products, Curls Hair Tea conditioner and various gels. I'm modified CG-ish since 5/04.