Social software, software that supports group communications, includes everything from the simple CC: line in email to vast 3D game worlds like EverQuest, and it can be as undirected as a chat room, or as task-oriented as a wiki (a collaborative workspace). Because there are so many patterns of group interaction, social software is a much larger category than things like groupware or online communities -- though it includes those things, not all group communication is business-focused or communal. One of the few commonalities in this big category is that social software is unique to the internet in a way that software for broadcast or personal communications are not.