Local cultures (organized around rural communities or citystates).
National cultures (organized around the nation-state).
Globalization of cultures (organized around an increasingly interdependent work), creating surface level global unity along with deeper level local diversity of the world's cultural conflicts in post Cold War era--as people seek new identities and often return to old identities without sufficient recognitin of global interdependence needs and dangers of war in a technological age. New non-localized virtual communities also emerging in cyberspace.