RSS (Really Simple Syndication) feeds are content feeds from web sites. The feeds will usually have a summary of the article and a link to the web page with the full article (depending upon the size).
To read RSS feeds you need a RSS reader or aggregator. Most modern web browsers (IE, Firefox, Safari) will handle RSS feeds in one way or another. Yahoo has a list of programs that you can use. Mac users have RSS support built into Safari and Mail. I have found that NetNewsWire for the Mac to be a good product (they also have readers for Windows - click on the link below). Google. Yahoo and others have web based readers.
As an example, the Washington Post has a vast selection of RSS feeds (they claim over 150). You can select to get feeds from your favorite columnist, news from different regions of the world or the local states. The FBI even has feeds for its most wanted lists.
Yahoo Groups that have public message archives (you do not have to be a member to read the messages) are available via a RSS feed. Local examples of these are NOVA-Agility and AgilityNewsMid-Atlantic.
You can think of RSS feeds like a email group without the email. The reader that you use will periodically check the feed for new content rather than receiving email. Subscription is normally just clicking on a link like the one above which would take you to the program that is registered to handle RSS feeds. The program should then ask if you want to subscribe to the feed. Unsubscribing from a feed is as simple as deleting the feed from your RSS reader. Some web browsers will indicate a page has RSS information available by using an icon like the one above (or an RSS icon) in the address bar and a click on the icon will start the subscription process.
