+Object type: @o0j2j@
+
+Example UUID: @zzzzz-o0j2j-0123456789abcde@
+
+h2. Resource
+
+Links are an extensible way to describe relationships between Arvados objects and metadata about individual objects.
+
+Each link has, in addition to the "Common resource fields":{{site.baseurl}}/api/resources.html:
+
+table(table table-bordered table-condensed).
+|_. Attribute|_. Type|_. Description|
+|head_uuid|string|The object being described or acted on.|
+|tail_uuid|string|The origin or actor in the description or action (may be null).|
+|link_class|string|Type of link|
+|name|string|Primary value of the link.|
+|properties|hash|Additional information, expressed as a key→value hash. Key: string. Value: string, number, array, or hash. May be used in queries using "subproperty filters":{{site.baseurl}}/api/methods.html#subpropertyfilters|
+
+h2. Link classes
+
+Some classes are pre-defined by convention and have standard meanings attached to names.
+
+h3. permission
+
+See "permission links":{{site.baseurl}}/api/permission-model.html#links section of the permission model.
+
+h3. star
+
+A **star** link is a shortcut to a project that is displayed in the user interface (Workbench) as "favorites". Users can mark their own favorites (implemented by creating or deleting **star** links).
+
+An admin can also create **star** links owned by the "Public favorites" project. These are favorites will be displayed to all users that have permission to read the project that has been favorited.
+
+The schema for a star link is:
+
+table(table table-bordered table-condensed).
+|_. Field|_. Value|_. Description|
+|owner_uuid|user or group uuid|Either the user that owns the favorite, or the "Public favorites" group.|
+|tail_uuid|user or group uuid|Should be the same as owner_uuid|
+|head_uuid|project uuid|The project being favorited|
+|link_class|string of value "star"|Indicates this represents a link to a user favorite|
+
+h4. Creating a public favorite
+
+@owner_uuid@ is either an individual user, or the "Public favorites" group. The @head_uuid@ is the project being favorited.
+
+<pre>
+$ linkuuid=$(arv --format=uuid link create --link '{
+ "link_class": "star",
+ "owner_uuid": "zzzzz-j7d0g-publicfavorites",
+ "tail_uuid": "zzzzz-j7d0g-publicfavorites",
+ "head_uuid": "zzzzz-j7d0g-theprojectuuid"}')
+</pre>
+
+h4. Removing a favorite