Alex Moss

Google+ comments was introduced in April 2013 to blogger.com users. This plugin lets you add Google+ comments to your WordPress site!
Simply install the plugin and follow the instructions on the Settings page.
<ul>
<li><a href="http://3doordigital.com/wordpress/plugins/google-plus-comments/" rel="nofollow ugc">Google+ Comments</a> Plugin homepage.</li>
<li>More <a href="http://3doordigital.com/wordpress/plugins/" rel="nofollow ugc">WordPress Plugins</a>.</li>
</ul>
You can also insert the comment box as a shortcode into any post, page or template and use your own settings for each time you do it! Simply use the shortcode [gp-comments]

Google+ Comments

The Google+ Comments WordPress plugin makes it easier for you to setup, administer and customise Google+ comments from your WordPress site.

andreiserban2

kamalsghholdings

techpraani

Sided is a polling platform that allows you to easily create and insert polls into your content. Turn poll comments on to generate even more engagement on your site. To activate the Sided plugin, enter your API key on the settings page – you can find this key in the Sided dashboard at sided.co. After activating the plugin, view a full list of all polls on your dashboard. Create new polls from this dashboard, or use the “Create poll” block to add new polls while editing your posts. Use the “Select poll” block to insert existing polls into your posts.
Major features in Sided include:
<ul>
<li>A dashboard for viewing all debates.</li>
<li>A list of all debates with the link, status, published date, and short code displayed.</li>
<li>Create a new debate from the dashboard or the new post page.</li>
<li>While creating, debate preview.</li>
<li>Supports debate short codes for easy embedding in posts.</li>
</ul>
<h3>Third Party</h3>
This plugin loads a javascript from https://cdn.sided.co which sends events data of the plugin to google firebase analytics. More details about can be found here https://firebase.google.com/docs/analytics. Usage policy https://firebase.google.com/policies/analytics

Sided

Use the Sided plugin to create and insert discussion polls into your content.

Google+ Comments vs Sided