Akregator is a free, open source application for GNU / Linux that lets you read latest news from your favorite blogs and websites using their RSS feeds.
You can place each feed in a section. These categories are customizable according to the full name and content and you can also create necessary subchanks.
Feeds have a broad configuration margin, their names, descriptions and updates by which they save every article.
Akregator lets you import feeds from OPML and XML files and export your feeds in one of these formats.
If you prefer that the KDE applications show up and you need a feed reader, the orator is an option that is highly recommended.