FeedAgregator
RSS and Atom feed agregator in desktop widgets + notifications
FeedAgregator periodically looks for RSS/Atom feed updates. If an update is found, a notification is sent. In addition, desktop widgets display either all the entries of one feed or the latest entry of each feed of a given category.
FeedAgregator is designed for Linux. It is written in Python 3 and relies mostly upon Tk GUI toolkit. The application is in the system tray, so it might not work with all desktop environments (see Troubleshooting).