Recently, blogger has introduced the Google+ follower widget for blogger blogs. The widget basically shows the pictures of the users in whose circle the author is in. It also features an "Add to Circles" buttons with link to the Google+ profile of the author.

With the Google Author Rank on it's way you need to have plugins like this to increase your circles which Google will consider while calculating your author rank.
What I'm going to share is how you can use this plugin for your Wordpress site. Just copy and paste the following code in your sidebar.