Tiny Tiny RSS is an open source web-based news feed (RSS/Atom) reader and aggregator, designed to allow you to read news from any location, while feeling as close to a real desktop application as possible.
Server-side application, user only needs a web browser
Supports RSS, RDF, Atom feeds using SimplePie
Easy setup and configuration
Streamlined interface using AJAX
Authentication for reading protected feeds (e.g. LiveJournal friend-only posts)
multiple and single user operation,
detecting and filtering duplicate articles, podcasts,
feed sharing between instances,
Integration into Desktop Software and Mobile Apps.