A program known as a feed reader or aggregator can check RSS-enabled webpages on behalf of a user and display any updated articles that it finds. RSS saves users from having to repeatedly visit favorite websites to check for new content. This is a partial list of aggregators:
Aggie - desktop application that downloads the latest news and displays it in a web page.
Aggreg8.net - RSS feed aggregator built on the Mozilla framework or XPFE. It uses XUL, Javascript, RDF, CSS, XPConnect, and XPCOM.
AmphetaDesk - Free, cross platform, open-sourced, syndicated news aggregator.
Awasu - free Windows RSS news-reader.
BlogExpress - downloadable application for aggregating syndicated XML content. Supports all RSS versions and ATOM.
Bloglines - free, web-based news aggregator that makes it easy to keep up with your favorite blogs and RSS newsfeeds.
BlogMatrix - Jager - RSS syndication reader that uses a web browser to display content. Jager runs on both Windows and Macintosh OS 10.3.
Blogtrack.com - checks your favorite sites and tells you which ones have updated their content.
BottomFeeder - A Smalltalk, desktop RSS Reader. Open source, runs on Windows, Mac, and various Unix flavors.
Fastbuzz - free web-based aggregator to search and view the latest additions to your favorite online publications.
Feedmarker - free, web-based RSS/ATOM aggregator and bookmarks manager.
Feedreader - Windows application that reads and displays RSS newsfeeds based on XML.
InfoSnorkel - customizable news aggregator and headline and RSS reader.
KlipFolio - information channel viewer that lets users view and manage Klip information channels on their desktops.
Lektor - Lektora
Meerkat - web-based syndicated content aggregator based on RSS.
Mercury News Readers - Displays RSS, RDF and Atom feeds. Available as screensaver, news ticker, Internet Explorer toolbar, and feed reader application.
My Yahoo! Featuring RSS - add headlines from news providers and the latest entries from your favorite blogs directly to your My Yahoo! page.
NetNewsWire - RSS news reader which uses a three-paned interface to display web sites and their news.
News2Web - Takes a set of newsfeeds and publishes a webpage from them. Designed for corporate users.
Newsburst - RSS aggregator from CNET.
NewsFeed - A desktop RSS reader and aggregator in Python/Tk.
NewsGator - RSS news aggregator that runs in Microsoft Outlook.
NewsIsFree - Put news on your website or in your desktop aggregator.
Newsplorer - skinnable news reader which supports multiple syndication formats.
NewzCrawler - web news reader and browser which provides access to news content from different sources.
Novobot - headline viewer and news ticker that can also process almost any web site.
Oddpost - web-based, ad-free email application includes an RSS news aggregator, spam filtering, and email alerts that notify you when blogs and news sources are updated.
Pears - Three-pane newsfeed (RSS/RDF and Atom) aggregator which caches downloaded feeds for offline use. It has a clean interface, and works on Windows, Linux and Mac OSX.
phpNewsfork - Browser-based news channel and Weblog interface based on PHP, XML-RPC, and RSS. It uses the XML-RPC APIs from meerkat.oreillynet.com and syndic8.com, and does not require a database.
Pluck - offers an Internet Explorer add-on which integrates a bookmark manager, web sharing, RSS reader, and search.
PubSub - allows you to subscribe to queries that are then matched against newly published information from sources such as weblogs, newsgroups, and SEC filings.
QuikView Channel Viewer and Bookmark Server - Full channel RSS / XML viewer and bookmark server. A portable, cross-platform, sidebar application. Able to read all RSS versions.
Radio Userland - News aggregator included with weblog software application for Macintosh and Microsoft platforms.
Raggle - Open-source console-based RSS aggregator, written in Ruby, for Linux, Unix and Windows. Information for users and developers.
Rocketinfo Desktop - Search software for finding and sharing news with integrated solid RSS newsreader.
Rojo Networks - discover, organize, and share the wide range of dynamic RSS content on the Internet.
RSS Bandit - an RSS/Atom aggregator for desktops written with the .NET Framework.
RssDisplay - A quick Perl CGI to render an RSS feed in HTML for use in SSI on sites. This script does that very simply, yet with a small set of configurable options.
Sage - RSS and Atom feed aggregator for Mozilla and FireFox browsers.
SharpReader - RSS aggregator for the .NET framework.
TheYoke - A simple RSS aggregator designed for use on the UNIX command line.
Thunderbird - Open source cross-platform email and Usenet client based on Mozilla code. Features intelligent spam filters, built-in RSS reader, and quick search.
Wizz RSS News Reader - A simple RSS news reader extension for Firefox. Reads all versions of RSS. i.e. 0.90, 0.91, 0.92, 0.93, 1.0 (RDF) and 2.0.