To integrate Google+ Comments On self hosted WordPress websites download Google+ Comments for WordPress a WordPress plugin by Brandon Holtsclaw.
Google+ Comments for WordPress makes the comment section tabbed seamlessly adding tabs for G+ Comments, Facebook, Disqus, WordPress Comments, and Trackbacks This plug-in lets you use the Google+ comment system thats implemented on blogger.com (unofficially) on your WordPress.org blog along side WordPress comments if desired.
You should have Google Authorship already setup and in use for your site.
Demo: http://www.cloudhero.net/gplus-comments
Download: http://wordpress.org/extend/plugins/gplus-comments/
