FeedFury - FeedFury was a powerful RSS supportive tool that helped to manipulate or to retrieve content data from multiple web feeds by functioning as an XML directory, the reader, and the aggregator.

Feedbro - Advanced Feed Reader - Read news & blogs or any RSS/Atom/RDF source. Feature highlights:

Kouio - Kouio is an RSS reader-based tool that allows quick reading efficacy with multiple websites, articles, or news stories, and more with comprehensive study or basic options to explore the content.

Tiny Tiny RSS - Web-based news feed aggregator, designed to allow you to read news from any location, while feeling...

Reedah - Reedah is an alternative to the Google reader that allows users to read the content of various websites, blogs, stories, articles, and many more with RSS-based aggregator efficacy.

Reeder - Reeder is an RSS reader and client for multiple services.