Cameron. has added a photo to the pool:

The screens can look really interesting with all these content types in one place. Usually, bloggers keep a main content area with text "blog" posts, and twitter, delicious, flickr in a sidebar (usually each with it's own little design standard).

This way the item is designed around the content type, "link", "image", "video", "quote", "conversation". If an item doesn't fit into any of these, it gets a "regular" design -- title & body.