SIMAnswers categories Joomsocial Groups integration

We need to implement a module/plugin/hack so when a user categorize a question in sim_answers joomla module, this question automatically is published on the relevant group wall of jomsocial. So we need: - A relationship between sim_answers categories and jomsocial groups. - Control over this relationship (so we can select in some way witch category is included in a group) - A wall post in the group saying something like 'Somebody asked a question on Some category' (and the question quoted below).