Determining when a file contains a feed

Techniques for detecting, managing, and presenting syndication XML (feeds) are disclosed. In one embodiment, a web browser automatically determines that a web site is publishing feeds and notifies the user, who can then access the feed easily. In another embodiment, a browser determines that a web page or feed is advertising relationship XML, and displays information about the people identified in the relationship XML. In yet another embodiment, a browser determines that a file contains a feed and enables the user to view it in a user-friendly way. In yet another embodiment, feed state information is stored in a repository that is accessible by applications that are used to view the feed. In yet another embodiment, if a feed's state changes, an application notifies the repository, and the state is updated. In yet another embodiment, a feed is parsed and stored in a structured way.