This article explains how to copy the link to a post published on Google+. The procedure is easy and straightforward, and once the link has been copied it can be shared using the method of your choice (instant messaging, email, tweet...).
Sign-in to your Google+ account and scroll to the post for which you want to retrieve the permalink. Click on the small arrow
button displayed at the top right corner of your screen > Link to post
Copy the URL to your clipboard and click on Done