A feed (or news feed) is a data format used for providing users with frequently-updated content, such as news for a site, or posts for a blog. A feed can be provided in different formats, such as RSS or ATOM, and can be subscribed by a user with a feed reader application.
Adding feeds to a site is very important because it provides users with the latest content without them having to visit the site.
By default, eZ Publish doesn't provide a self-generated feed. However, it does provide an option for the site administrator to enable one from the administration interface.
Moreover, any node of the content tree can be used to generate a feed, through a very flexible system that can handle any kind of content class.
We will add a feed to the forums and the blog, choosing the best class attributes for both.