Lilina is a simple, flat-file based news aggregator. It supports RSS and Atom feeds ... .in current development ...
LeafRSS - The Learning Filtered RSS Aggregator: A simple RSS aggregator that learns to filter out unwanted articles from multiple feeds automatically. Written in PHP, LeafRSS is ideal for presentation of aggregated and filtered RSS text on a web site.
Zort is another in a long line of web-based RSS/Atom aggregators, based on
MagpieRSS, to boot. It is available under the GNU GPL version 2. It features:
Blox0r Best web aggregator ever! Web aggregator, blog reader, bookmark manager and more. XUL application for use in Gecko browsers like Mozilla, Firefox, Camino, Netscape. Runs in all platforms like Linux, Windows, MacOSX.
http://www.bloxor.com funny name, nice screen shot
Paperboy RSS aims to provide the all around best open-source set of tools for aggregating and reading news feeds. It uses XSLT letting you effectively transform XML documents into any literally text format. What does this mean? Simple, Paperboy can read
any feed (or other XML) format and output
any format. Paperboy is under active development and is available in a fully stable release version.
Ozcode is the source code behind Ozmozr.com, a microformat-aware RSS aggregator, social networking, resource sharing, identity aggregation and presentation site.included because it is so *new*
MyHeadlines is an RSS reader that caches content from many sources and provides Full Text search capabilities. The emergent behaviour is an efficient Current Events Search Engine. Using MyHeadlines each user has the ability to subscribe to the news feeds that interest them the most. There's screen scraping technology for building custom feeds, and for harvesting Stock Ticker data. Blogging, Link Dump, and Comments are features included in the standard download. If you have a PHP and MySQL based web architecture then MyHeadlines is the Content Syndication Engine for You!