RSS feeds allow information that is frequently updated, like items in databases, on newspaper websites, and on blogs, to be sent to you instead of you visiting those websites to get new information. RSS feeds are organized in Feed Readers, so you can subscribe to RSS feeds for multiple journals and updates for all of them will be organized in one Feed Reader.
For a simple video description of what RSS Feeds are and how you use them, watch this video:
You can use RSS Feeds to automatically notify you of recent articles in the library databases.
See the Library's Guide to setting up Search Alerts and Journal Alerts on how you can set up your own RSS feeds.
It's a great way to see what's new!