Hi Beth,
She's referring to RSS feed which allows for easy online content distribution. RSS feeds can be read as plain text files, but they are actually designed to be read through RSS feed readers, and there are a wide variety of different RSS feed readers to choose from. I use Google Reader but there are many others.
There's a graphic in this article that helps explain what it does.
What is an RSS feed and Why Syndicate your blog?
You will need to know what kind of platform her blog is on and follow the instructions in the article how to set that up. You can also Google and YouTube search for how-tos. It's
pretty straightforward.
Let me know if you need additional information.
Janine