Navigate to the Control Panel > Communications Tab > Setup > Mailing List Categories.
Click Add Category.
Enter the category name and specify whether this category should be included on the Add me to your Mailing List screen (see Mailing List Link).
If you add a category you want to associate with a specific donation, membership type, etc., don't forget to select the category in the module.
Deleting a Category
Click the Delete icon in the Maintain Column for the list you want to remove. You won't see this icon if there are people assigned to the category or if it's a system category (created by ClubExpress). If it's a category you've added, you'll need to remove the members from the mailing list before deleting the category.