The search results will serve up listings from different categories. Go to those categories and determine which one is most appropriate for your site. Be sure to review the subcategory descriptions, whenever possible, to determine if your site is appropriate to that category or subcategory. Multiple submissions, especially to inappropriate categories, will not be tolerated.
World is for sites in languages other than English.
Each has categories of its own. Shopping is for retail and online sales sites. Regional contains many business listings for specific localities. If your organization serves a small geographic area, Regional may be the best location for your listing. Multiple submissions, especially to inappropriate categories, will not be tolerated.