The invention provides a method, system, and program product for differentially displaying an instant messaging (IM) availability to a plurality of potential interlocutors. In one embodiment, the invention includes creating a relationship chart of potential interlocutors based on an organizational chart; defining a willingness to communicate, including a temporal component; establishing an IM availability for each potential interlocutor using the relationship chart and the willingness to communicate; sending the IM availability to a server; transmitting the IM availability from the server to a potential interlocutor's computing device capable of displaying the IM availability; receiving an IM invitation from an interlocutor; and generating an alert based on the IM availability for the interlocutor.