What are RSS feeds?
RSS stands for Really Simple Syndication. An RSS "feed" is the website's way of alerting subscribers that the website has been updated. It feeds subscribers the latest updates that have occurred on the web site.
How do I subscribe to an RSS feed?
When you find an RSS feed you'd like to subscribe to, you must first have a tool that can read these RSS feeds. These tools are often referred to as "News Aggregators", "RSS Readers" or "News Readers". There are an abundance of these tools online that are free.
Why would I need RSS? What is the advantage?
RSS feeds allow you be notified when a web site has been updated. Normally, you would have to proactively visit the site as updates occur. You just subscribe and watch the notifications roll into your news aggregator. Also, RSS is unspammable because you control your subscriptions. The site owner never has your contact info.