Aggie
A .NET based open source application for reading RSS feeds. Supports RSS versions 0.91, 0.92, 0.93, 0.94, 1.0, and 2.0.
http://bitworking.org/Aggie.html

Awasu
Free RSS client, allowing monitoring of a variety of news sites and weblogs. Using plugin architecture, can also be customized to monitor databases, email accounts, and other resources.
http://www.awasu.com/

Active Web Reader
Free aggregator. Supports RSS feed formats 0.9x, 1.x and 2.x. Requires Internet Explorer 6 or higher.
http://www.deskshare.com/awr.aspx

FeedDemon
Stand alone feedreader. Has the ability to watch for particular keywords. Supports all versions of RSS and Atom 0.3.
http://www.feeddemon.com/feeddemon/

RDF-Ticker
A shareware RSS newsticker application for the Windows desktop.
http://www.anse.de/rdfticker/

Surfpack
All-in-one aggregator for Windows, browser-based, builds a single HTML page from RSS, Atom, XML/XSL, HTML, and JavaScript news sources. Also includes bookmarks manager, current weather, and other modules.
http://www.surfpack.com/

egoClip
RSS reader that learns to prioritize news items by how interesting it thinks you'll find them.
http://egofile.com/egoclip/

InfoSnorkel News Aggregator
Windows application that aggregates RSS feeds, plus content from sites without feeds.
http://www.blueelephantsoftware.com/

RSS Bandit
A free desktop news aggregator for Windows built on the .NET Framework.
http://www.rssbandit.org/

Wildgrape NewsDesk
Wildgrape NewsDesk is a fast, convenient, and easy to use RSS headline reader for Windows. Requires Microsoft .NET Framework.
http://www.wildgrape.net/

Syndirella
Free desktop information aggregator. Can show the information from regular Web pages and from RSS feeds. Requires Microsoft .NET Framework.
http://www.yole.ru/projects/syndirella/

SharpReader
Three-pane RSS Aggregator for the .NET framework.
http://www.sharpreader.net

FeedIt
Small RSS/Atom feed aggregator for Windows 2000/XP.
http://feedit.blogspot.com/

FeedReader
Open-source aggregator that supports RSS and Atom formats. Runs under Windows 95 and later versions.
http://www.feedreader.com/

Headline Viewer
Shareware newsreader client for Windows.
http://www.headlineviewer.com/

Composite
A free desktop RSS/RDF aggregator application for .NET.
http://www.jelovic.com/rssaggregator/

Vox Lite
Allows visitors to keep up-to-date with sources of information that support the RSS protocol. Requires .NET Framework 1.1.
http://www.stevenwood.org/stories/2003/06/08/voxLite.htm

RssReader
Free RSS reader is able to display any RSS news feed. Requires Microsoft .NET Framework 1.1.
http://www.rssreader.com

intraVnews
Turns Microsoft Outlook into a feedreader for both RSS and Atom. Allows for smart grouping, searching, filtering and archiving of news items and weblog posts.
http://www.intravnews.com

FeedThing
Syndicated news reader which supports all flavours of RSS as well as Atom.
http://feedthing.sourceforge.net/

NewsGator
News aggregator that runs in Microsoft Outlook. Site features product overview, online tutorial and trial download.
http://www.newsgator.com/

Newz Crawler
Provides access to news content from several sources, including XML, RSS, Usenet, and the Web.
http://www.newzcrawler.com/

Online News Screensaver
Get the latest news and weather forecast delivered right to your computer screen with this screensaver.
http://www.cool-screensavers.com/onlinews.html

Novobot
A heavily featured desktop newsreader, that can also scrape non-RSS sites.
http://www.proggle.com/novobot/

News Interceptor
Aggregator reads both RSS feeds and non-RSS based news sources.
http://www.newsinterceptor.com/

RSS Ole!
A lightweight RSS news reader. [requires .NET]
http://www.ntsolutions.info/software.html

Fuzzy Duck RSS Reader
Reads RDF, RSS and Atom formatted XML news feeds.
http://www.fuzzyd.co.uk/rssreader/

Onfolio
Application for collecting, organizing and sharing RSS feeds. Integrated with Internet Explorer and Office.
http://www.onfolio.com/

Royal RSS Reader
Reader that supports Atom feeds as well as RSS 0.91, 0.92, 1.0 and 2.0 .
http://www.geocities.com/the_real_sz/misc/royal.htm

WinRSS
Freeware feed reader for Windows.
http://www.brindys.com/winrss/

cRSSReader
Freeware .Net based desktop RSS news reader. Has the capability to save articles.
http://www.vitter.com/crssreader/

NewsAloud
Finds the stories in selected categories and reads them aloud with natural sounding voice.
http://www.nextup.com/NewsAloud/index.html

K-List
K-List provides a way for Microsoft SharePoint list contributors to configure their lists to be automatically populated by RSS / Atom feeds. Users can specify individual or whole categories of feeds, how often they run, keyword filters, and which list columns the feed maps on to.
http://www.k-list.com/

Newsplorer
Newsplorer is a fully skinnable newsreader that supports all the major news-syndication formats available today (RSS 2.0, RSS 1.0, RSS 0.9x).
http://www.newsplorer.com/

blogbot for Outlook
Blogbot for Outlook is an RSS/Atom/weblog aggregator that plugs into Microsoft Outlook 2000/XP/2003. It monitors subscriptions to Internet news feeds and delivers new posts to folders within Outlook.
http://www.blogbot.com/out/

blogbot lite
RSS/Atom news and weblog application integrated with Internet Explorer in a sidebar.
http://www.blogbot.com/lite/

QM nooze
Very simple RSS/RDF reader with simple interface and small memory footprint. [Win 95/98/Me/NT/2000/XP]
http://www.quantummechanic.com/ocean/host.php?folder=1&page=7&T=

EffNews RSS Reader
The EffNews RSS Reader is a minimalist RSS reader (not aggregator) for Windows. The reader is shipped as part of the effbot.exe application framework - a freely available Python library that includes a tolerant RSS parser and an asynchronous HTTP client module.
http://www.effbot.org/zone/effnews-exe.htm

NewzSpider
NewzSpider is a news aggregator that runs on your computer and downloads headers from your favorite news sites and blogs. It is flexible and very easy to use. NewzSpider supports ALL RSS standards (0.9x, 1.0 and 2.0) as well as the new ATOM format.
http://newzspider.com/index.html

ToolButton
Free, customizable deskbar that sits on the desktop providing a versatile RSS reader, multi-site search bar and form filler. May not work in some browsers.
http://www.toolbutton.com/

Omea Reader
RSS/Atom feed reader, newsgroup reader and Web bookmark manager. Features include searches, categorization, flagging, annotations, clippings and notifications. Requires .NET Framework. [Windows 2000/XP/2003].
http://www.jetbrains.com/omea/reader/

Chaos Wallpaper
A utility that rotates desktop wallpaper while displaying RSS or Atom feeds on the desktop.
http://www.elgorithms.com/downloads/chaoswallpaper.php

RssFeedEater
RssFeedEater is a RSS Reader for Windows. It can gather information from sites that offer syndicated contents (RSS or ATOM) and presents them in a hierarchical interface.
http://www.babisoft.com

RSStatic
Software that displays, archives, and creates static html pages for any RSS feed.
http://www.rsstatic.com/

GreatNews
Supports all major RSS feed formats; integrates with Bloglines. Doesn't need .NET or Java runtime. [Windows 2000/XP/2003].
http://www.curiostudio.com/

RSS Point
RSS and Atom feeds reader for Win32 environment.
http://www.rsspoint.net

News Central Pro
News Central is a news aggregator that runs as an icon in your system tray. It allows you to subscribe to various syndicated news feeds and have news from these sites be delivered onto your desktop.
http://www.accusoftware.co.uk/newscentralpro.asp

FeedScout
Feed Scout is a handy RSS reading toolbar for Internet Explorer. Can display RSS directly in Internet Explorer browser.
http://www.bytescout.com/feedscout.html

Haumohio FeedTray
Free program that allows you to gain access to RSS news articles through tray icon's menu.
http://www.haumohio.com/feedtray.html

PHALANX Security Response Ticker
Internet Explorer toolbar that provides a collection of RSS feeds on virus threats and vulnerabilities for all IT fields. Users are also able to read self-defined XML formatted feeds.
http://franz-net.dom.de/phalanx/

RSS Toolbar
An RSS Toolbar for Internet Explorer that monitors RSS feeds and displays the feed through the web browser.
http://www.diodia.com/feedstoolbar.htm

Opera
Opera is a fully functional browser with built-in support for RSS and Atom newsfeeds. Supports voice command when working on Windows XP systems.
http://www.opera.com

BitsCast
A free rich media RSS reader/aggregator integrating Microsoft JET database engine with rich media (news, audio, video and software delivery).
http://www.bitscast.com/

CyberBuddy
CyberBuddy is a freeware application that delivers a variety of content to your desktop, including RSS News Feeds, via talking agent characters.
http://www.mycyberbuddy.com

FeedGenie
FeedGenie is the tool for linking to websites and downloading RSS feeds automatically.
http://www.arwanah.com

Taskable OPML and RSS Browser
Taskable is a RSS and OPML browser built into the Windows taskbar area. Clicking on the application icon provides instant access to feeds from menus that can be traversed with the keyboard or the mouse.
http://www.taskable.com

MedReader
An RSS/ATOM reader and Podcast client built specifically for the Medical and Healthcare industry. It resides on desktop and persistently searches for the most relevant information catering to your specialty.
http://www.medreader.com

WebSpeedReader
Fast web browser with integrated RSS reader.
http://thismatter.com/WebSpeedReader/default.htm

RSS Captor
A configurable RSS feed reader. Supports all versions of RSS and has an audible alert for new messages.
http://www.rsscaptor.com/

RSS Aggregator
An RSS reader that as well as reading feeds it can form a new feed from several existing feeds.
http://www.extralabs.net/

FeedGarner
Free .NET RSS aggregator that can read RSS and Atom feeds as well as act as a Podcast client. Requires Microsoft .NET Framework 1.1.
http://www.ucanca.co.uk/feedgarner.html

CITA RSS Aggregator
Free full function aggregator that can also deliver bittorrents. Can access feeds secured by user ID and password. Includes tool to remove adverts from feeds. Requires .NET Framework.
http://www.seeita.com/RSSA/index.shtml

Marcel
A free RSS/Atom reader for Windows available in English and French. Simplified presentation and functions.
http://imum.free.fr

Tristana Reader
Free desktop reader that supports both RSS and Atom, designed to eliminate information overload.
http://www.tristana.org/reader/

ActiveFeeds RSS Toolbar
A customizable toolbar that adds RSS capability to Internet Explorer.
http://www.activefeeds.com/

PAVONE NewsReader
Ae RSS/Atom reader for IBM Lotus Notes/Domino. Fully integrates into a IBM Lotus Notes environment.
http://www.pavone.com/newsreader_en

YeahReader
Free RSS/RDF/Atom news aggregator. Built-in weblog-client, support of OPML, and multilanguage interface.
http://www.yeahreader.com/

Sauce Reader
Full-featured RSS reader featuring saved searches and a blogging tool. No longer supported.
http://www.synop.com/

NewsPiper
A freeware RSS feed and web news reader that can speak headlines.
http://software.korzh.com/newspiper/

Nutshell
Freeware RSS reader with support for multiple users. Supports import/export of OPML channel lists and has skinable user interface.
http://nearlogic.com

RSS2Exchange
RSS2Exchange allows you to publish your very own industry specific news pages directly into MS Exchange Public Folders.
http://www.hexamail.com/rss2exchange/