Providing an electronic notification to an intended recipient includes
communicating an electronic notification directed to an intended
recipient, determining a lifespan related to a duration of relevance of
the electronic notification, and providing the electronic notification to
the intended recipient when the lifespan has not expired. The duration of
relevance describes a time period during which information of the
electronic notification reasonably may be expected usefully to inform an
action or interest of the intended recipient. After the lifespan expires,
provision of the electronic notification to the intended recipient may be
prevented.