3. The method of claim 1 , further comprising: identifying a newly-created association between two entities of the plurality of entities, a first entity of the two entities authoring a third content item that is associated with an author restrict comprising data that identifies the first entity; and issuing, to a second entity of the two entities, the author restrict comprising data that identifies the first entity.
3. The method of claim 1 , further comprising: identifying a newly-created association between two entities of the plurality of entities, a first entity of the two entities authoring a third content item that is associated with an author restrict comprising data that identifies the first entity; and issuing, to a second entity of the two entities, the author restrict comprising data that identifies the first entity. 4. The method of claim 3 , further comprising: updating the search index to associate a searcher restrict comprising data identifying the second entity of the two entities with content authored by the first entity of the two entities.