1. A method in a content recommendation system, the method comprising: defining a collection including indications of multiple entities that are each referenced by one or more of multiple content items indexed by the content recommendation system and that are each electronically represented in the content recommendation system; processing the collection to determine one or more of the multiple content items that are related to at least some of the multiple entities, the one or more content items including an article and/or an entity; and recommending the content items.