For a general shopping site that sells products from a variety of product categories; Is it better to limit the depth of your directory structure for SEO purposes? IE; Root_folder/shopping/computers-index.htm/ Root_folder/shopping/desktops.htm Root_folder/shopping/clothing-index.htm Root_folder/shopping/sweaters.htm Or would it be better to take advantage of the opportunity to name the additional folders (in a deeper folder structure) with good keywords? IE; Root_folder/shopping/computers/computers-index.htm Root_folder/shopping/computers/desktops.htm Root_folder/shopping/clothing/clothing-index.htm Root_folder/shopping/clothing/sweaters.htm