Bookmark Atom entries can appear in feeds produced by the Bookmarks API, or in an Atom Entry document produced or sent to the API.
Bookmarks bookmark entry content
Lists the elements in a bookmark Atom entry.
Bookmarks tags category document
The category document identifies the tags that have been assigned to particular items, such as blog posts or community entries. Tags are single-word keywords that categorize a posting or entry. A tag classifies the information in the posting or entry to make it easier to find the content later. The format of the tags document is an Atom publishing protocol (APP) categories document.