Wikipedia
Liferea
Liferea is an abbreviation for Linux Feed Reader, a news aggregator for online news feeds. It supports the major feed formats including RSS/ RDF and Atom and can import and export subscription lists in OPML format. Liferea is intended to be a fast, easy to use, and easy to install news aggregator for GTK+ that can be used with the GNOME desktop. Liferea features a script manager, in which users can add custom scripts that run whenever a certain action occurs.
Liferea also supports Podcasting.