Google Plus is one of the last social networks to offer Promoted Posts, but their +Post ads could end up being the most effective in today’s saturated content market.
Unlike other social ads, promoting your content through +Post ads will display your ads across the Google Display Ad network (commonly known as Adsense). This means that instead of littering Google Plus with ads, the +Post ads are located on third party websites that already utilize Google Adsense.
Despite Facebook’s large membership base, your ads are limited to that platform’s audience. On the other hand, Google Plus ads can potentially be seen by an unlimited number of people.