When you create a group you need to choose a name, write a description, specify a location and/or group focus. As long as you aren't an admin in 3 groups, you can create even more groups (premium members can create up to 10). After filling out the form, you will need to wait for approval of your group.
Super group is a group that bought an upgrade. Groups with super group status has access to more features than normal groups (similar to premium membership for deviants)