After Google announced that they will use users profiles and faces for online ads a lot of G+ users decided to change their profile pictures into one that portrays Eric Schmidt, the executive manager of the company, accompanied with a comment that usually protested the change of policy. So the effect now is that there are some sponsored ads that include, endorsement of a local restaurant by the face of Schmidt, but with the name of someone else. The effect is increased if the user starts a commenting spree after he changed his profile portrait and some of them did just that. Now Google+ is full of ads that portray Eric Schmidt, saying that Google Ads can use this picture or that Eric could endorse whatever he wants, but Google can't use his/her image.
This move was preceded by the same one by Facebook, but regrettably there was no such response, probably because user are used to privacy infringement by Facebook.