Category screen shot:

(Default Category)

Default category is used by most of the directory type of search engines.Choose a suitable category for your site from the list provided.

(Customized Category)

Used for engines such as Yahoo and Open Directory(dmoz).
Choose the engine from the "Customized Engine" list, then double click on the category name from the "Main Category" list and then double click on a "Sub-category" from the "Sub-category" list box on the right. You need to keep selecting a "sub-category" until you see the "Ready to submit" message on the screen.

Main Menu      Next Screen Shot