Yes Rice flour is gluten free, I do all my baking with rice flour and I have never had a problem with it. Just to be on the safe side, check the ingrediants, incase there is something like Barley...
According to Wheat Free Org both White and Brown rice flours are wheat and gluten free. Take a look at this web site to see more details and to find other gluten free flours....
I have had great success with corn flour, millet flour and chick pea flour. I emphisize the word flour because all grains come in many forms for baking you want a flour grind. Some people don't like...