1. A system comprising: a database system implemented using a server system, the database system configurable to cause: maintaining at least one database on behalf of an enterprise, the at least one database storing data objects identifying a plurality of enterprise records and identifying a plurality of feed items associated with the enterprise records; implementing, using the database system, a social networking system comprising a plurality of feeds, at least one of the feeds configurable to share a subset of the feed items associated with a first one of the enterprise records, the subset of feed items comprising a first update associated with a first user, the first update being a record update or a post; processing a first request to share a comment on the first update, the comment capable of being identified by a data object as associated with the first update; processing a second request to share a first post in a feed of the social networking system, the first post being independent of the first update and independent of the comment; determining, using the database system, or processing a notification, using the database system, that the first post is related to the first update based at least in part on at least one first attribute of user-submitted content of the first post conforming to at least one second attribute of the first update; generating, based on the first post being related to the first update, a combined update comprising at least: the first update, the comment, and the first post; and displaying the combined update in a displayed feed of the social networking system, the displayed update comprising a graphical indication that the first update, the comment, and the first post have been combined.