Patent attributes
A method includes concurrently displaying a content item area and access control list information corresponding to an access control list of distribution entities; receiving, from a user of a client system, input in the content item area, the input including a content item; presenting to the client system user an affordance that enables the client system user to update the access control list to produce an updated access control list including one or more distribution entities, at least one distribution entity of the one or more distribution entities corresponding to one or more recipient entities; and transmitting the content item and access control list to a server system for storing the content item in conjunction with the access control list. The server system enables access to the content item to one or more recipient entities in accordance with the access control list.