First and foremost, search the directory to ensure that a proposed category is not already existant in the directory. Ask yourself, "Is my subcategory cross-disciplinary, and if so, what other areas could resources in my subcategory be classified under?" If there is a subcategory in another area of the ODP that is similar to my subcategory, should I create a Related Categories link? Should I create an @link?|
Consider creating subcategories when you have 20 or more links in your category. In general, subcategories should not be created until there are groups of easily organized links in the category. You should be able to see groups of links that can be easily organized by subtopic. Remember that a large number of links is difficult for the user to browse to find the desired resource(s).
When you make changes to your category such as creating subcategories, or moving sites between categories, you should communicate these changes to other editors before making these changes. Even if you are the sole editor of a category, you should communicate changes to parent category editors. The preferred form of communication is e-mail or posting your proposed changes in the appropriate editors forum.