For some time now, some Google web search results have revealed the Google+ information of the author. This is a feature that is possible for any site that clearly indicates its content’s individual authors (mostly news sites and blogs).
Find Out How Many People Use Over 1,000 of Your Favorite Social Networks, Apps and Digital Services
So how do you link your Google+ account to your content? Well, I wanted to do it myself, so I did a little searching and found this helpful Google page that spells out everything you need to do to link things up. It turns out that there are a couple of ways of doing it.
If you regularly author content on a site, I would highly recommend linking your Google+ account. It will make it easy for Google Plusers of like interests to find and circle you. Being added to more Google+ circles obviously gives your content even more exposure.