Web feeds provide a way for websites to indicate that they have been updated. Users subscribe to feeds and are notified when new content is added to a web site.
Tate's Web Feeds
How to Subscribe
Using a feed reader (also known as an RSS reader, feed aggregator or news reader). One example is RSSOwl (MacOS X, Windows and Linux).
Some email applications support feeds. One example is Thunderbird (MacOS X, Windows and Linux).
Some websites provide personalised homepages to which feeds can be added. Among the websites that provide this service are Google and Yahoo!
The way to subscribe to a feed depends on the specific application you are using, but essentially involves transferring the URL of the feed to the feed reader.
Tate's feeds are in RSS 2.0 format.
For more general information, see the Wikipedia article Web feed.