Organic Groups allow you to control access to different areas of your site based upon a users membership in a particular group.
Enable users to create and manage their own 'groups'. Each group can have subscribers, and maintains a group home page where subscribers communicate amongst themselves.
They do so by posting the usual node types: blog, story, page, etc. A block is shown on the group home page which facilitates these posts. The block also provides summary information about the group.
Groups may be selective or not. Selective groups require approval in order to become a member, or even invitation -only groups. There are lots of preferences to configure groups as you need.
OG7 Example sites
Users upgrading from 1.x read the upgrade doc.
Other OG7 movies and tutorials
Entity-cache can be enabled and OG will use it
Views OG cache can be used to cache views on a per group basis (with consideration to node-access)
7.x-2.x Related modules
Upgrading from 1.x
Upgrading requires using the Migrate module. Follow the instructions, after you have verified you have a proper backup.
Maintenance status: Actively maintained
Development status: Under active development
Reported installs: 33,053 sites currently report using this module. View usage statistics.
Automated tests: Enabled