1. A method comprising: determining, by one or more processors, one or more topics associated with a message based at least in part on message data included in the message; determining, by the one or more processors, knowledge data describing the one or more topics associated with the message; determining, by the one or more processors, social activity data describing one or more user activities associated with a group of one or more social users based at least in part on the knowledge data, the one or more user activities describing the one or more topics; generating, by the one or more processors, a selectable tag based at least in part on the social activity data describing the one or more user activities, a selection of the selectable tag causing a display of the social activity data associated with the message; and generating, by the one or more processors, graphical user interface data for displaying the social activity data associated with the message in response to the selectable tag being selected.
5. The method of claim 1 further comprising: identifying a first user associated with the message and a group of one or more second users associated with the first user; and generating the graphical user interface data for providing an access to the group of one or more second users.