This list will, of course, never be complete. If I'm missing anything please let me know.

This list will, of course, never be complete. If I'm missing anything please let me know.

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aggrss - an rss aggregator which uses the lastRSS library to aggregate RSS feeds. Unix

AgileRss - desktop aggregator that is able to display any RSS, ATOM, and XML news feed. It also allows you to keep up-to-date with all your favourite sources of information that support the RSS protocol. Internet syndication and aggregation software, that runs on any java enabled operating system. Minimum hardware configuration is Intel Pentium II system with 128 MB of RAM and 100 MB free disk space. Sun Microsystems Java VM version 5.0 or later

aKregator - a news aggregator and feed reader for Linux/UNIX and the KDE desktop environment. It is meant to be fast, powerful, and easy to use

CaféRSS - a simple RSS aggregator that's quite easy to integrate into your pages. It supports RSS 0.9, 0.91, 0.92, and 2.0 feeds

Feed on Feeds - server side personal RSS aggregator. Requires a server running modern versions of PHP and MySQL

FeedOnFeeds-Redux - a continuation of the popular, but stagnated FeedOnFeeds project. FoFRedux provides a simple, yet effective browser-based news aggregator

Feed Reader Professional - Reads news feeds - Reads weather feeds - Reads blog feeds - Reads content feeds - Reads industry feeds - Reads affiliate program feeds - Reads XML and RSS feeds - Simple to install, simple to use - Does not require MYSQL - Software includes professional output - Requires PHP on Linux. $99 US

FeedReactor - experimental feed aggregator in Python

FIRST SAY - a syndicated content aggregator / portal that uses XML/RSS syndication feeds from Weblogs and mainstream content providers

getrss - RSS news aggregator in Ruby

Infinite Penguins RSS viewer - The code consists of a single PHP source file for the frontend, and the Magpie RSS Library (versions 0.1, 0.3, 0.5 have been tested) for the backend

Jrssfeedreader - a light and fast Rss & Rdf news reader written in Java

K.R.S.S. - a Linux-based application that downloads Rich Site Summary feeds and displays them on your desktop, in HTML

Liferea - a simple FeedReader clone for Unix distributions with GNOME2. It is a news aggregator for RSS/RDF feeds which also supports CDF channels, Atom/Echo/PIE feeds and OCS or OPML directories

lilina - a simple but powerful news aggregator written in PHP. No database is needed, RSS/ATOM parsing is done by the excellent MagpieRSS library (it is included, no additional installation needed). It features feed auto-discovery and an easy-to-use interface

lylina - an RSS/Atom feed aggregator loosely based on it's predecessor, lilina. Although it features a similar interface, making it an easy upgrade and quite familiar to lilina users, it improves upon the formula with the addition of a much faster MySQL backend and a much more streamlined cron-based update system. It also adds optional multi-user support, allowing for each user to login and see a customized feed page, filled with the content of choice

Metaplanet - a feed agregrator that shows the news of multiple sources in a unified web page. The main objetive is to serve web pages as fast as posible with a minimum load on the server. Requiriments: PHP 4.3 with XSLT support enabled. PHP command-line interpreter

My Newspaper - a personal RSS Aggregator and Reader written in Python with a bit of javascript and uses sqlite as permanent storage for the articles

MyHeadlines - personalized syndicated content. As a user you may subscribe to many news/content sources from the MyHeadlines database. For each of your subscriptions this site will gather the latest headlines/stories/content from the source and present a consolidated view of all of your interests in one location. Requires MySQL v3.23.23 or better. PHP 4.0.4 or better

NewsGoblin PHP RSS News Aggregator - This script will bring you a complete news site that is constantly updated via rss feeds. This script is completely customizable, has an adsense setting to allow you to make money showing news on your site. Hot news items based on high dollar Google Adwords. No database required

PenguinTV - a Python-based RSS reader specifically designed for downloading and viewing podcasts and video blog entries

Plagger - A pluggable RSS/Atom feed aggregator written in Perl. Everything is implemented as a small plugin so you can mash them up to build a new application to handle RSS/Atom feeds

Raggle - a console RSS aggregator, written in Ruby. Features include customizable keybindings, basic HTML rendering, HTTP proxy support, OPML import/export, themes, support for various versions of RSS, Screen support, browser auto-detection, and more. Raggle has been tested under Linux and OpenBSD, and should work properly under other Unix variants as well

renko - a simple enclosure-aware RSS aggregator/downloader

Rippy the Aggregator - Written in PHP (version requirement unknown, probably needs PHP4). Doesn't require any compiled-in optional libraries that don't ship with PHP. Stores its cached data in flat files, no database needed. Freely licensed and customizable under the GNU GPL version

Rnews - a server-side rss aggregator written in php with mysql

Rol - a simple application for reading RSS or RDF feeds such as those produced by many news sites or weblogs. It is not intended to do anything more than display the headlines and allow you to choose which to read in your web browser. Rol is written on Debian GNU/Linux, but it should work on any POSIX system

RSS-Planet - a custom marker file generator for xplanet which uses RSS feeds from news websites to plot the current headlines on a world map. By default, Yahoo! News and CNN.com are supported, but other feeds that point to articles with easily-discoverable place names (such as the Washington Post) should work as well. Python 2.3 or above, xplanet 1.0 or above required

RSS2Exchange - allows you to publish your very own industry specific news pages directly into MS Exchange Public Folders. For Windows and Linux

RSSFeedMagic - an rss/rdf web reader

RSStatic - takes information from the feeds you choose and generates static html pages for each item in the feed. This quickly turns a 10 page website into a much larger, more robust site complete with relevant content that continually grows. Requires PHP 4.3.10, and Apache 1.3.33

Snownews -a text mode RSS/RDF newsreader. It supports RSS 1.0 feeds that comply with the W3C RDF specification and also supports Radio Userland's RSS 0.91 and 2.0 versions. The program depends on ncurses for the user interface and uses libxml2 for XML parsing. ncurses must be at least version 5.0. It should work with any version of libxml2. Runs on Linux, *BSD, OS X (Darwin), Solaris and probably many more Unices

sux0r - a Bayesian filtering RSS aggregator. Users classify news under different categories, and after gathering enough data, the computer will be able to automatically pick out interesting news

Syndigator - is an RSS reader/aggregator for Linux

TALAggregator - is a free multi-user, web-based RSS Aggregator. It is written in Python, uses MySQL for storage, ModPython for dynamic web pages, and SimpleTAL for HTML templates

Temboz - an RSS aggregator. It is inspired by FeedOnFeeds (web-based personal aggregator), Google News (two column layout) and TiVo (thumbs up and down). Temboz is written in Python, and leverages Mark Pilgrim's Ultra-liberal feed parser, SQLite 2.x, Cheetah

TheYoke -an ultra-simple, polite RSS aggregrator designed for use on the UNIX command line

Tiny Tiny RSS - Server-side RSS feed aggregator written in PHP and heavily based on XmlHttpRequest and related technologies for user interface and operation

TV RSS - Gtk2-Perl Torrent RSS feed reader for linux

ZebraFeeds - a web-based news (RSS/ATOM) aggregator, based on zFeeder 1.6. Uses only flat-text-files, and works without SQL database. Requires PHP >= 4.2.0

zFeeder - a PHP script used to display RSS content on your webpages. It can be used to display other's content on your site. (also known as aggregator). It parses RSS (or RDF or backend) files (xml files) and shows content formatted. It supports all versions of RSS (0.9, 0.9x, 1.0 and 2.0) and is template driven

Zort - a web-based RSS aggregator, based on MagpieRSS. Requires: A webserver (currently only tested on Apache 1), PHP (currently only tested on PHP 4.3.10), a web browser (currently only tested against Mozilla)