Computer implemented method and a system that includes receiving a list of invitees for a future meeting, accessing electronically stored relationship data that includes information identifying a plurality of individuals and existing relationships between the individuals, wherein the individuals include at least some of the invitees and also additional individuals, selecting one or more of the additional individuals that are identified in the relationship data as having existing relationships with one or more of the invitees, and adding the one or more selected additional individuals to a potential invitee list for the future meeting.