I don't know what Buffer is, but if they can post to Google+ it only means they have a private deal with Google. The Google+ API is read-only, it says so in th

I don't know what Buffer is, but if they can post to Google+ it only means they have a private deal with Google. The Google+ API is read-only, it says so in their own docs: https://developers.google.com/+/web/api/rest/ https://developers.google.com/+/web/api/rest/ And if you want a service that has integration with everything except for Google+, there's IFTTT.