Hubs for social interaction via electronic devices are described. In one aspect, a data processing device includes a display screen displaying a social interaction hub, the social interaction hub including a collection of records. Each record includes a counterparty identifier identifying a counterparty of a past social interaction event, a mode indicium identifying a mode by which the past social interaction event with the counterparty occurred, and a collection of mode indicia each identifying a mode by which a future, outgoing social interaction event with the counterparty can occur. The counterparty identifier, the mode indicium, and the collection of mode indicia are associated with one another in the records of the social interaction hub.