Feeds are an easy way to keep track of changes on a website. A feed is a specially formatted web page that is read by an application called a feed reader or aggregator. This application lists a summary of each change or new page, sorted by date. Sometimes you'll see feeds called syndication, XML, or RSS - they're all the same thing.
Wikispaces provides feeds of page edits, messages, and file changes for all of our wikis. You may also use feeds for specific pages, discussion areas, and files.