One of my customers said to me earlier this year "Karen, you do not have a category for yarns by weight. I do not want to go through all the pages to look for the right size!" She was right! Patterns are shown by yarn weights, but yarns were not. I have now corrected the situation.
My groupings are a little off from the Craft Councils guidelines, so please use your best judgement when you read the description of the yarn gauge. Here is a link to the new page - Yarns by Weight.