Always good to know what you contractually agree to when you use any Google offering. Google depends on your acceptance of their 'Terms of Service’ (TOS) to make money. Here is the true ‘Plus’ you agreed to when using ‘free’ Google products aka, 'The Services' (like Google+, Gmail, etc.):

11.1 By submitting, posting or displaying the content you give Google a perpetual, irrevocable, worldwide, royalty-free, and non-exclusive license to reproduce, adapt, modify, translate, publish, publicly perform, publicly display and distribute any Content which you submit, post or display on or through, the Services.

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.

14.2 YOU EXPRESSLY UNDERSTAND AND AGREE THAT YOUR USE OF THE SERVICES IS AT YOUR SOLE RISK AND THAT THE SERVICES ARE PROVIDED "AS IS" AND “AS AVAILABLE.”

http://www.google.com/accounts/TOS

Is ‘Google’ derived from ‘Goebbels?’