Headline is a small desktop RSS reader with a chat client-like interface and loads of smart features.
The application comes with a large choice of feeds, but you can easily add your own and remove the ones you don't want. Instead of previewing items in the interface, a preview window pops up, in a Quick Look fashion. Headline includes its very own video player, so you watch videos and listen to audio items in the preview window.
The search box at the top is particularly responsive and useful if you don't want to scroll down your list of items. You'll also find a button at the bottom left which lets you switch between feeds and entries. You can mark items you like as favorites and share them via email or iChat.
The compact size comes at a cost, which is no browser view. However it's worth sacrificing it for an interface that stands out from other typical desktop RSS readers.
Headline is a compact desktop RSS reader with a good video player and sharing features.