The idea of Spaces is very simple - this area enables you to 'nest' groups (in this case Spaces) one inside another. With multiple 'Child Spaces' able to be created within each 'Parent Space'. It is possible to have multiple 'Parent Spaces' , each with their own set of 'Child Spaces.'
Each Space has it's own set of permissions and members, enabling users to control their membership at each level.
- List of joined members
- Join confirmation
- Group messaging
- Event's location
- Special privacies, such as closed and secret spaces
Spaces area will enable you to create various Communities, and within those Communities, you can create 'Sub-Communities', within those Sub-Communities members can post the full range of normal posts.
For example, if you were making a site on International Soccer/Football you could make a Parent Spaces of Countries, the child spaces could be the Football teams. So if a member followed the country - they would automatically join all of the teams in that country, or they could choose to just follow the individual teams.
In other words you can create Groups within Groups.