Most interesting in RSS Tools

Free
Read RSS/Atom news feed data on your Mac.
Free
Collects the latest news from your favorite websites, RSS feeds, blogs, etc.
Free
Store news articles, videos, and images in one place.
Free
Unison gives you virtual meeting rooms where you can IM, post updates or documents, and talk live whenever needed.
Free
It is the flagship, open source blog and feed aggregator.

Top rated in RSS Tools

Monotony
Free

This application helps you keep track of the latest news.

NewsBar RSS reader
Free

Gain quicker access to iCloud-based news.

FeedWizard
Free

A three-paned RSS reader which just provides the basics.

GrabIt
Free

Captures, previews and edits desktop screenshots.

FeedBoard
Free

FeedBoard is an app that shows you news from your Google Reader account.

MobileRSS
Free

MobileRSS is a very sleek Google Reader desktop client.

Caffeinated
Free

Combine news feedback into an RSS environment.

Readefine
Free

Readefine - Beautiful reading offline as well as online.

Quiet Read
Free

Quiet Read allows you to save links to read them later.

RSSOwl

GUI desktop client (using SWT as fast graphic libary) that reads the RSS format from a URL or a local file.

Times
Free

Create a custom virtual newspaper from RSS materials.

NetNewsWire Lite

Stop clicking bookmarks, let NetNewsWire Lite show you what's new in your favorite websites.

Microsoft Bing for Safari
Free

Enable online search with Bing in the Safari browser.

Newsflow
Free

Collect news from multiple sources to the same place.

Cappuccino
Free

Capuccino is an RSS/Google Reader client for the Mac.

iClarified
Free

iClarified is a small app that provides you with the latest Apple news.

Pulp
Free

Create news feeds from multiple sources.

Shrook
Free

Shrook is an efficient RSS reader that helps you keep track of the latest news.

Reader Notifier
Free

Reader Notifier aims to supplement the official Mac Notifier menubar plugins for OS X, in adding support for Google Reader.

Times Reader
Free

Times Reader lets you to read the latest news from The New York Times newspaper.