Wil on the rebirth of NetNewsWire:
NetNewsWire is free and worth a try. The Mac App Store and the iOS App Store have plenty of RSS newsreaders available in varying prices, but my choice is News Explorer which has versions on Mac, iPhone, iPad, and Apple TV. As with many of the best RSS newsreaders, News Explorer allows you to read articles within the app, share articles via Messages or Mail, and save for later reading. It also syncs your list of websites between devices.