According to Wikipedia, GeoRSS is an emerging standard for encoding location as part of an RSS feed. What that boils down to for Explorer users is that it's another connection type that enables you to add dynamic, constantly changing information to your map.

The following video clip shows how you can connect to and use a GeoRSS feed:

The first step is to establish a connection to a GeoRSS feed. We'll use one from the USGS Earthquake feeds and data site. Right underneath the KML section you'll see a section for Atom and RSS Feeds. Click the one for magnitude 2.5+ earthquakes over the past 7 days, as shown by the red arrow below.

Copy the URL at the top of the page that opens...

Then in Explorer choose File > Open, highlight Servers, and choose GeoRSS Feed...

And then paste the URL into the Server input box.

After stepping through the wizard (you can accept all the defaults), you'll see a new connection appear. Click to open it and add the feed to your map.

Here's the GeoRSS feed in Explorer, click each to display other information associated with the event. In this case it's a link to the USGS Earthquake Hazards Program Web site with additional details about the quake.

We also covered GeoRSS feeds in an earlier post, and more information can be obtained by viewing the Help documentation on opening content and GeoRSS feeds.