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.

tierrainnovation

*** Please Note: If you have installed v.1, please deactivate, install, and then reactivate the plugin. ***
AJAX Report Comments is a simple yet powerful add-on for any WordPress blog, particularly larger blogs with a higher volume of user comments. It provides blog visitors the ability to report an inappropriate comment to the blog’s moderator with a single click using AJAX and email.
Through the WordPress Admin you can modify many aspects of the plugin including the text of the “Report Comment” link, the resulting “Thank you” message, the email address to send the inappropriate comment to and the layout and content of the generated email itself. You can even modify the HTML surrounding the “Report Comment” link to suit your needs.
After a comment is reported, the email address you specify will receive a message including the text of the reported comment and a link to view the comment on the site. The next version of this plugin will include more admin options and variety of moderation options, such as placing the comment in a moderation queue if more than X number of visitors flag it as inappropriate.

AJAX Report Comments

AJAX Report Comments is a simple yet powerful add-on for any Wordpress blog, particularly larger blogs with a higher volume of user comments.

Google+ Comments vs AJAX Report Comments