I am sorry; I don't know why the message was deleted.
My drupal site will replicate parts of an existing group on social media. Users on the new site will choose to post information as: - articles (general) - blog pages - reviews (like an article but has fields for: story_title, reviewer, rating) - book/author news (promotion really. Like an article but has fields for story_title, author, url to book)
Some of these types have fields which are similar to, but not exactly the same, as other types.
Right now (on the social media site) people regularly post promotion information as regular “article” information.