You know, we really should check on this single post page. WordPress can hold and display many different types of content. A single item of such a content is generally called a post, although post is also a specific post type. Internally, all the post types are stored in the same place, in the wp_posts database table, but are differentiated by a column called post_type. WordPress 3.0 gives you the capability to add your own custom post types and to use them in different ways.