I would need a jomsocial component and plugin customized to work with Community Builder.
It is Jomsocial – real time notification components (com_jsrtnotify and plg_jsrtnotify).
You can test work here http://test.38irk.ru
1. login/psw – tester/tester
2. login/psw – tester2/tester2
(need to login in different browsers).
