Google Plus Domains API

Google Plus Domains
The Google+ Domains API allows users to build applications that can interact with with Google+. This could be prepopulating circles and admins within a business for new employees, integrate applications with Google+ for announcements and bulletins, or a number of other uses. The API allows access to Activities, Audiences, Comments, Circles, People, and Media from Google+. The services uses REST calls, and Google provides Java and Python developer kits.