The typical definition for the initials RSS is “Really Simple Syndication”. This is simply a method of broadcasting your blog or other frequently updated content across the internet or, by subscribing, following multiple sites with one easy tool.
By supplying an RSS feed, readers of your blog can quickly and easily access your blog in an RSS reader, like Google Reader, without the need to navigate to your blog whenever they want to see a new posting. The importance of this is it makes it easy for readers who are interested in your blog to know when it is updated and read the new content without actually visiting your blog.
Refer to this Wikipedia article for a more in-depth description of RSS feeds.
How is it addictive? Right now, I’m following about 20 blogs daily. No more click, search, scan, click search scan. Just sit back, scan the headlines, and choose whichever ones strike my fancy and blog away. That is addictive stuff for bloggers and business people like me.
Do you need an RSS feed? Who would you subscribe to? Your favorite blogger, a prospective client, your competition?