Please help me identify this plugin

I came across a wp site that had this follow buttons in the rightrail.

I looked at screenshot section of several plugins in the plugin directory of wordpress.org, but nothing.

HEre is a screenshot of that plugin:
https://www.dropbox.com/s/5dwczjbc67ti7rx/Screenshot%202015-07-01%2010.16.05.png?dl=0

thanks,