Google+ is no different: 11.2 you agree that this license includes a right for google to make such content available to other companies, organizations or individuals with whom google has relationships for the provision of syndicated services, and to use such content in connection with the provision of those services. 11.3 you understand that google, in performing the required technical steps to provide the services t…
When you upload or otherwise submit content to our Services, you give Google (and those we work with) a worldwide license to use, host, store, reproduce, modify, create derivative works (such as those resulting from translations, adaptations or other changes we make so that your content works better with our Services), communicate, publish, publicly perform, publicly display and distribute such content. The rights you grant in this license are for the limited purpose of operating, promoting, and improving our Services, and to develop new ones.
IANAL, but I don't think that includes a right to sell (sub-license) your content.