...Some of the unique highlights are tabbed reading, powerful searches that can be saved, news filters with automated actions, embedded browser and newspaper layout, tray notifications, clean-up wizard and powerful user customization.
RSSOwl requires no installation, simply start it with a doubleclick and find a large list of sample feeds already provided. For your convinience, an installer is provided on Windows. On Linux, you can obtain RSSOwl from the online repository (http://www.rssowl.org).
You can also easily import existing feeds from other readers into RSSOwl.