RSSOwl is a free RSS / RDF / Atom Newsreader written in Java using SWT as graphic library.

RSS (Really Simple Syndication or Rich Site Summary) is a document specification that gives users the power to collect and organize Web-based news and information in a more efficient manner. Applications that collect data from RSS-compliant sites are called RSS readers or aggregators. RSSOwl is such an application. It lets you gather, organize, update, and store information from any compliant source in a convenient, easy to use interface, save selected information in various formats for offline viewing and sharing, and much more.

Why Owl? The owl is a traditional symbol of wisdom, and a quiet, efficient hunter. You'll find RSSOwl's big eyes a big help when scanning the Web's vast array of RSS resources.

Top12 Features why you should use RSSOwl:

o High performance and native Look and Feel that uses the operation-system GUI theme

o Great platform support: Use RSSOwl on Windows, Linux, Mac, Solaris

o Import / Export newsfeeds with OPML (Outline Processor Markup Language)

o Generate PDF / RTF / HTML documents from any news

o Use drag and drop to manage your favorites in unlimited nested categories

o Loaded newsfeeds are automatically stored in an archive to read them while being offline

o Powerfull, integrated Newsfeed searchengine

o Perform a fulltext-search with result-syntaxhighlight

o AmphetaRate integration to rate news and receive recommendations (content-based with Bayes / user-based with ACF-Nearest-Neighbor Algorithm)

o RSSOwl is highly customizable (set Fonts, Hotkeys, Language,...)

o Display news in the internal browser

o Big Tutorial and FAQ to help you manage your new newsreader

Supported Languages: 25 (English, Russian, Chinese, German and much more).

RSSOwl comes with a huge list of sample favorites.
RSSOwl runs on Windows (98/ME/NT/2000/XP), Linux (GTK2), Mac OS X and Solaris.