RSS
What is RSS and how do I use it?
RSS (Real Simple Syndication) is an XML technology used to create information feeds. You can subscribe to these feeds to recieve updated information. Although you may use a browser to view this information, specialized programs called aggregators are available to manage RSS feeds.
Windows RSS Aggregators:
NewsGator
FeedDemon
Macintosh RSS Aggregators:
NetNewsWire
Safari RSS
Web-based RSS Aggregators:
Bloglines