Syndicated content, otherwise known as Really Simple Syndication (RSS), is a way to distribute information from web sites. For example, using RSS, a news site or a blog can automatically feed its news articles or entries to a group of subscribers.
RSS feeds in Explore are used to notify you of new items found by the query. RSS feeds can be activated from either the search results or the Saved Searches tab. All you need is to have an RSS reader installed on your computer.

If your browser supports RSS, click the RSS button. A window from which you can subscribe to the RSS feeds opens. Follow the instructions in the window.
If your browser does not support RSS, right-click the RSS button, copy the URL, and paste it into the RSS reader.