9 invocations of hook_og() in Organic groups 6.2

og_approve in ./og.module

Activate a user's membership in a group.

og_broadcast_form_submit in ./og.pages.inc

og_create_admin_confirm_submit in ./og.pages.inc

Confirm og create admin form

og_delete_subscription in ./og.module

Delete a user's membership in a specific group.

og_deny in ./og.module

Deny a user's membership request to a group.

og_nodeapi in ./og.module

Implementation of hook_nodeapi().

og_remove_admin_confirm_submit in ./og.pages.inc

Confirm og remove admin form

og_save_subscription in ./og.module

Save changes to a user's group membership.

og_subscribe_user in ./og.module

Create a new membership for a given user to given group.