RSSimple is a simple feed aggregator/notifier that sits on your menubar. Now all updates to your favorite feeds are one click away. View the updates right from your menu bar - no need to open up a browser just to check if your favorite websites have new content.
Note: Development on RSSimple has stopped, and I have also taken it down from the Mac App Store (tm). If you still want to use it, the link below is a direct download of the last version.