Anyone who has had a Blog for a while, probably already has an RSS feed for it, so this message probably won't be any good to you.
But for any newcomers to the blogging world, I've recently discovered how to create an RSS Feed directly from your blog, so others can subscribe to it.
I blog using BlogSpot, and the website www.feedburner.com allowed me to create my own personal feed, and walked me through the entire process of adding the feed icon and link to my blog.
It was extremely easy to use, and now allows any readers of my blog to receive updates whenever I make a new post.
Hope this helps,
Moraelyn