A small feature was quietly ushered into Google Plus some months ago that I missed.
Interactive Google Plus Posts
Though I love Google and follow them religiously, I did think (until now) that the Google Plus platform had a very limited social function and online marketing potential. Then I changed my mind. Coming from the people who always seem to do it right another opportunity for success, the opportunity for “Interactive” Google Posts. This feature has our internet marketers clamoring and customizing client APIs to achieve the objective of every marketing project – to convert the prospect and make them do something. What we marketers fondly refer to as a Call-to-Action.
Read More: https://moz.com/ugc/thank-you-google-for-interactive-g-posts