A telecommunications system includes a network; a social networking service operably coupled to the network and configured to allow registration of users, to allow identification of registered users' interests, and to identify associated users, said associated users being associated with registered users; a presence service operably coupled to the network and configured to determine an availability of associated users responsive to one or more availability criteria; a translation unit configured to convert user information from a social networking service format to a presence service format; and a messaging service operably coupled to the network and configured to send notification messages to associated users determined to be available and having a common interest corresponding to an event responsive to an occurrence of the event and one or more availability criteria.