Everything Google. If It's Not Here, It Didn't Happen.
July 25, 2012
More G+ Integration In Search With "Actively discussed on Google+' Link
This one almost slipped by us! Apparently, over the last week, there's been a notable Google+ feature popping up in unsuspecting people's search results. If one of your search results is on a trending topic, a new "Actively discussed on Google+" link. If you dare click the link, a G+ post will slide out, with a couple of comments, that presumably have something to do with the topic of the page. Below the G+ post, you will see a link "View xx Comments on Google+." Clicking that will take you straight to the discussion on the Google+ page.
This link also appears on some image and video search results, as shown below.