Control who can access Google services
If you're an administrator of Google accounts for an organization, you can control who uses any particular Google service from their account. Just turn the service on or off for those people in your Google Admin console. When users sign in to their account, they see only those services that are turned on for them.
Which service do you want to turn on or off for users?
Click below for instructions (requires an administrator account).
Additional Google Services
Groups for Business
Google My Maps
Picasa Web Albums
|Any Marketplace app|
You can also turn new services on or off by default. For details, see Opt in to new services.