Methods, apparatus and computer program products implement session-specific URIs for allocating network resources by receiving a request from a user for at least one network resource; assigning a session-specific URI to the at least one network resource for use in identifying the at least one network resource and controlling access to the at least one network resource; updating a network directory service with the session-specific URI; and communicating the session-specific URI to the user. The user communicates the session-specific URI to other participants in the session during which the at least one network resource will be used. After a pre-determined time, the session ends and the at least one network resource is de-allocated by, for example, changing the URI of the at least one network resource. Frequent changes of URIs hinder efforts by unauthorized individuals to gain access to network resources.