Sergey Biryukov

<p><strong>Since One-Face service ceased to exist, this plugin is deprecated and available for reference only.</strong></p>
<p>Allows visitors to leave comments via <a href="http://one-face.ru/" rel="nofollow ugc">One-Face</a> authorization service. Shows the login block written in Flash, which fills the standard login forms using JavaScript.</p>


One-Face Comments

Allows visitors to leave comments via One-Face authorization service.

Louy Alakkad

<p>GeePress, gives you all the tools you need to integrate your WordPress and Google+, including “Login with Google+” and “Comment via Google+”… Highly customizable and easy to use.</p>
<h4>Key Features</h4>
<ul>
<li>Allow your visitors to comment using their Google+ accounts</li>
<li>Allow your blog users to sign in with their Google+ accounts. one click signin!</li>
<li>Easily customizable by theme authors.</li>
</ul>


GP – GeePress

All the tools you need to integrate your WordPress and Google+.

One-Face Comments vs GP – GeePress